Re: [Elecraft] Old topic RE: CM500
Look an Amazon for "headphone ear covers," or "headphone ear pads." Buck, K4IA Honor Roll 8BDXCC Author EasyWayHamBooks.com License and Operating Manuals On 2/14/2024 3:32 PM, Jim Leder wrote: I have two Yamaha CM500 headsets that I really like. However, both are suffering from the ear pad deterioration problem. A long time back I saw several postings suggesting replacement ear pads AND the foam inside cover. Naturally now I can't find them. I would like to rebuild at least one of them via the 'goop' (glue) method. Any recommendations for both the ear pad AND the foam inside cover? Thanks, Jim Leder ... K8CXM __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered toradiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3s and P3 Sale Price Reduced
K3S # 114** (Jan 2018) 100W ATU 2nd RX DVR MH4 Mic Filters Main RX 250, 400, 1.0, 1.8, 2.7 Filter 2nd RX 2.7 Beautiful condition w/Cady Book $3100 reduced to $3000 P3 #1755 VGA board and cables Beautiful condition w/Cady Book $700 Prefer to sell together $3,600 Plus shipping USA only ($100?) -- Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S and P3 for sale
My K4 is now firmly affixed to the operating position and it is time to sell the second best radio I have ever owned. Pics on request. K3S # 114** (Jan 2018) 100W ATU 2nd RX DVR MH4 Mic Filters Main RX 250, 400, 1.0, 1.8, 2.7 Filter 2nd RX 2.7 Beautiful condition w/Cady Book $3100 P3 #1755 VGA board and cables Beautiful condition w/Cady Book $700 Together $3,600 Plus shipping USA only ($100?) -- Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 recommendation - wait for HD or no?
I haven't yet encountered a situation where I said, "Gee, I really wish I had that HD front end." Not to say it won't happen but I don't have any big gun neighbors. Buck, K4IA Honor Roll 8BDXCC Author EasyWayHamBooks.com License and Operating Manuals On 1/18/2023 3:39 PM, Jim Brown wrote: On 1/18/2023 11:53 AM, Joseph M. Durnal wrote: I have my sights set on a K4D, but wondering if I should be considering the HD version. I bought a K4D. The HD is a module upgrade, not yet available. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] For Sale K3/100
You got a heck of a deal. I've seen those P3/VGAs go for $800 or more. Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com On 1/16/2023 3:40 PM, Jim Brown wrote: On 1/16/2023 7:14 AM, Marc via Elecraft wrote: I rarely do not post a price when selling, but I am not sure what this is worth now. I recently bought an early serial number K3 and P3/SVGA from a member of our local contesting club for $2K. It had the second RX, both were loaded with 2-3 filters, and the P3 had the wattmeter. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RFIth
The impedance increases with the square of the turns. 2 turns = 4 times the impedance. It would take 4 chokes in series to equal one choke with 2 turns. A "turn" is one pass through the middle. More turns is better until we get to very large chokes where the inter-coil capacitance lowers the impedance. Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com On 12/20/2021 9:49 PM, David Herring wrote: Pete, Yes. You either have to have lots of them, or you need to get bigger ones and run multiple turns through them. Also get the right “mix” for the frequency range in question. Type 31 is pretty good for HF. Not an expert, but studiedhttp://k9yc.com/RFI-Ham.pdf <http://k9yc.com/RFI-Ham.pdf>,http://k9yc.com/RXChokesTransformers.pdf <http://k9yc.com/RXChokesTransformers.pdf>,http://k9yc.com/GroundingAndAudio.pdf <http://k9yc.com/GroundingAndAudio.pdf> and others athttp://k9yc.com/publish.htm <http://k9yc.com/publish.htm>. There is a wealth of information there, available for free. 73, Dave - N5DCH On Dec 20, 2021, at 7:21 PM, Pete Smith N4ZR wrote: Others can speak more authoritatively about this, but I thought those clamp-on cores, where they go right on the existing run of coax, offered too little inductance to be of much use below VHF. Experts? 73, Pete N4ZR Check out the new Reverse Beacon Network web server at <http://beta.reversebeacon.net <http://beta.reversebeacon.net/>>. For spots, please use your favorite "retail" DX cluster. On 12/20/2021 8:02 PM, Bob McGraw wrote: For those using the clamp-on ferrite devices, when installing them, be sure part A closes completely and solidly contacts part B. Otherwise, there is no flux path and the device is ineffective. If it is closed and loose on the cable, then that's good. If it is closed or difficult to close, it isn't large enough for the cable and will likely not be effective. Any gap between the halves renders it worthless for the application. 73 Bob, K4TAX On 12/20/2021 6:18 PM,elecraft-requ...@mailman.qth.net wrote: Message: 11 Date: Mon, 20 Dec 2021 08:34:24 -0800 From: Dave To:elecraft@mailman.qth.net Subject: Re: [Elecraft] RFI Message-ID:<8cdb19ae-b111-5a6c-3f2a-d29efdd25...@nk7z.net> Content-Type: text/plain; charset=utf-8; format=flowed Hi, Purchase some FT240-31 ferrite cores, (https://www.farnell.com/datasheets/1912768.pdf), and wind at least 5 turns of each cable going to, or from, the computer through the ferrite. I have several of these, and they stopped ALL of my RFI issues with my computer, and with a weather station I have as well. Shop around looking for the best price, some folks are asking 10 bucks for one of these, others are asking 5 bucks... I use Newark, and Digikey as my goto places. Also look to K9YC's site, for more information on how to make the chokes... http://k9yc.com/2018Cookbook.pdf 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered topete.n...@gmail.com <mailto:pete.n...@gmail.com> __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft <http://mailman.qth.net/mailman/listinfo/elecraft> Help:http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> Post:mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> This list hosted by:http://www.qsl.net <http://www.qsl.net/> Please help support this email list:http://www.qsl.net/donate.html <http://www.qsl.net/donate.html> Message delivered todavid.n5...@gmail.com <mailto:david.n5...@gmail.com> __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered toradiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] RFI
Bond the computer case and radio with strap. That provides an alternate path for RF reducing the amount on the USB cable. Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com On 12/19/2021 7:24 PM, David F. Reed wrote: Due to some HOA C&R, I am confined to attic and gutter antennas for the time being. I am getting a bit of RFI on occasion into my PC; it manifests itself mainly by apparently disconnecting the com port from Commander. When this happens, I can restore functionality by selecting a different com port, and then re-selecting the original correct com port. I am grounded to a 10' ground rod about 8 ft. from the station via 2" copper strap. I did install ferrite beads on the USB cables at the back of the PC as well as on the power cord, and this has reduced the frequency of occurrence, but I would like to eliminate it altogether. Any other ideas and suggestions would be most appreciated! Thanks & 73 de Dave, W5SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] HELP! XFINITY SHUT OFF INTERNET DUE TO HAM ANTENNAS
My bet is you have a rogue tech who couldn't find the problem and decided to blame you. He greatly exceeded his authority and as soon as a higher-up hears what happened, this will be reversed. Besides, since we know you aren't the problem, the problem is still there and his "solution" will be proven wrong. Buck, K4IA DXCC Honor Roll 8BDXCC Author EasyWayHamBooks.com On 10/21/2021 9:35 AM, Julia Tuttle wrote: But remember, you're required to use the lowest power level feasible... ...so time to try for some really challenging DX, and keep your logs! Seriously though, did you find out if they're actually kicking you off or if this was just a grumpy local tech misguidedly trying to fix a problem by threatening you? 73, Julie On Thu, Oct 21, 2021, 09:27 Al Lorona wrote: Jim beat me to it. I was also going to urge you to transmit as much as possible on 20 meters with the highest power you can. The idea is to become a hair ball that Xfinity can't swallow nor can't cough back up. If anybody comes up to you to complain that you're still causing outages, use the same twisted logic that Xfinity used and tell them, "That's impossible. It couldn't be me because Xfinity has already disconnected me." Al W6LX/4 and 3) operate at you highest practical power level as often as possible. 73, Jim K9YC __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered toju...@juliatuttle.net __ Elecraft mailing list Home:http://mailman.qth.net/mailman/listinfo/elecraft Help:http://mailman.qth.net/mmfaq.htm Post:mailto:Elecraft@mailman.qth.net This list hosted by:http://www.qsl.net Please help support this email list:http://www.qsl.net/donate.html Message delivered toradiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4
If you don't travel first class, your kids will. Get the K4 (and the K5) and when your key goes silent the kids can sell it. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/17/2021 1:23 AM, BRUCE WW8II wrote: Give it to your kids WW8II On Mon, Aug 16, 2021 at 5:40 PM Ken Roberson via Elecraft < elecraft@mailman.qth.net> wrote: I have 4 kids, I could give each another $1500.00 when I dieor I could buy A new K4 , Let’s see which should I do? Ken K5DNL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wa8...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Temperature or Warmth of KPA500 when "Off" ?
Another interesting side note - the 12 volt rail in the K3 is "ON" all the time, even when the K3 is turned off. I found that out when one of the finals developed a partial short and the radio was drawing 2 amps when turned "OFF." If you are not using equipment, find a way to disconnect the power or turn off the power supply. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/1/2021 11:54 AM, Hal Massey wrote: Maybe so. But this is an old design. On Jul 1, 2021, at 04:50, David Woolley wrote: I don't think this design would be acceptable in modern consumer equipment, at least not in Europe. Typically they would have an auxiliary power supply for the microcontroller, to reduce power consumption to well under 1 watt, and maintain a reasonably good power factor, when in a soft power off state. Current and voltage figures quoted elsewhere in the thread suggest over 10 watts and an unknown number of VA. There was a lot of campaigning to hard power off devices at a time when standby powers were more like 5 watts. On 01/07/2021 00:09, Jack Brindle wrote: It is powered by the 5V linear regulator, which is providing the heat you feel, along with the +12V and -12V regulators (also linear). I seem to recall that the input to the regulator is something like +15 or +18V, which gets regulated down to the three supplies that are used for running the microcontroller the RS-232 interfaces and the LCD. The LCD is disabled when front-power is off. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to haljr.mas...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: High school drafting class
In those days, there was no such thing as ADHD. You got whacked on the back of the head until you paid attention. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/27/2021 6:22 PM, n0...@juno.com wrote: OK, so I gotta chime in and tell this brief story Circa 1958, HS mechanical drawing class. Some kid was screwing off. Distruptive! Mr Gersic, went back to the kid, picked him up off his stool by the seat of his pants/belt with one hand, the other on his shoulder, and carried him out door. Never saw the kid in class again!! :D) Charlie, N0TT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Speaker upgrade
If you don't care for amplified speakers, the Pyle 3" Mini Cubes are excellent. Less than $30 a pair online. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/23/2021 7:23 PM, Jim Sheldon wrote: Don, you’re right on about those West Mountain Com Speakers. I’ve had a pair on my K3S since day one and I wouldn’t trade them for anything. My wife got me a second pair and I use them with my KX2 when I’m operating on my back deck. Sure makes the KX2’s receiver sound super good. Jim, W0EB Sent from my iPad On Apr 23, 2021, at 6:13 PM, Don Wilhelm wrote: Since the K3 has stereo output, I suggest you look at the West Mountain Radio ComSpeakers. They do a good job. My K3 had 2 Radio Shack mini speakers on it, and the KX3 uses the ComSpeakers. Great in all respects. 73, Don W3FPR On 4/23/2021 6:01 PM, Rick Bates, NK7I wrote: Regardless of radio, my go to is the black Motorola mobile speakers (~5" square, with mounts). Already shaped for communications audio (chopped lows, peaked mids and some highs) by design, they sound awesome on the K3 *once you find a matching output pair* (they can vary in output by several dB). Estate sales, swap meets and radio shop closures are prime spots to find them; often $10 each (oh heck yeah, snag it and bag it!). Also, if you find them, the old Radio Shack speaker cubes (about 2" cubed) have very clear communication audio and work great in a mobile environment. Before RS went out of business the price was jacked up to about $60 (from $10) so swap meet prices may vary. I (almost) never use any internal speaker since they are not usually more than a basic add on, or have to be cranked up so much to be useful that they don't last long (and are mono with dual receivers). You might check to see what Elecraft offers for speakers to match your radio esthetics should your budget allow it. 73, Rick NK7I __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w...@cox.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Controlling KAT500/KPA500 with Icom 7610
I don't know what the correct signals are. Haven't been able to find that data k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/19/2021 5:49 PM, Hal Massey wrote: Hi Buck, I appreciate the continuity tests you did on your cable. Can you functionally test the cable? With the cable connected to the 7610 are the correct signals at the cable outputs? Regards -Hal / WB6NNR On Apr 19, 2021, at 1:06 PM, Buck wrote: Auto-sense works. I just don't understand why Icom/Elecraft would even suggest hooking up the molex connector to the KAT500 if it doesn't do anything. It is a waste of time. I got the W2GNY plug to fool the 7610 into transmitting as 10 signal and it works. I guess I will stick with that. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 2:31 PM, Ken Winterling wrote: Buck, I have had the IC-7610 and KAT500/KPA500 for almost three years and they are a very nice pair (or trio..). The IC-7610 doesn't "control" the KAT500 per se. Changing bands/frequencies on the IC-7610 doesn't cause any response from the KAT500. Only when the IC-7610 transmits does the tuner detect (sense) the RF and then adjust the capacitors and inductors to match to the current antenna. An Elecraft transceiver, OTOH, does communicate with the KAT500 (and KPA500) and changes bands/frequencies/antenna ports as the bands and frequencies are changed. The KPA500 responds the same way and changes bands by sensing transmit RF. You can build a "band data" cable to interface the IC-7620 to the KP500 and it will, with restrictions, follow the band selected by the IC-7610. The restriction is that Icom's band data voltages do not support the WARC bands. As a result, both 24 mHz and 28 mHz select 28mHz; both 18 mHz and 21 mHz select 21mHz. So, for all bands except WARC, the KPA500 will follow band selections made on the IC-7610 (or almost any other Icom such as the IC-7300, etc.). I can send you a diagram of the band data cable if you would like. It is only marginally useful and most ops of non Elecraft gear seem to just let the KPA500 (and KAT500) RF sense the transmitted RF to make necessary selections. Be sure to read the KAT500 manual section regarding "training" your tuner. GL! Ken WA2LBI On Mon, Apr 19, 2021 at 2:05 PM Buck mailto:radiok...@gmail.com>> wrote: I made up the cable from the Molex to the TUNE on the KAT500 as described and have checked continuity from end to end. All OK. I have the SEND from the 7610 connected to the PTT RLY on the KAT500. When I change bands, nothing happens. Is there another setting I need to change in the 7610? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 10:35 AM, Lyn Norstad wrote: > Buck - > > The KAT500 Rev D1 Manual, pages 13, 14 and 15 cover the Icom connections. > > The "AH4" cable (the one you're describing) powers the KAT500 and controls > the "Tune" function. If yours isn't doing anything, the cable is probably > defective. > > What else do you have connected? > > 73 > Lyn, W0LEN > > > -Original Message- > From: elecraft-boun...@mailman.qth.net <mailto:elecraft-boun...@mailman.qth.net> > [mailto:elecraft-boun...@mailman.qth.net <mailto:elecraft-boun...@mailman.qth.net>] On Behalf Of Buck > Sent: Monday, April 19, 2021 7:42 AM > To: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net> > Subject: [Elecraft] Controlling KAT500/KPA500 with Icom 7610 > > Anyone who has succeeded, I could use some help. The connection from > the 7610 molex antenna tuner jack to the "Icom in" jack on the KSAT500 > doesn't do anything. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft <http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> This list hosted by: http://www.qsl.net <http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html> Message delivered to wa2...@gmail.com <mailto:wa2...@gmail.com> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to haljr.mas...@gmail
Re: [Elecraft] Controlling KAT500/KPA500 with Icom 7610
Auto-sense works. I just don't understand why Icom/Elecraft would even suggest hooking up the molex connector to the KAT500 if it doesn't do anything. It is a waste of time. I got the W2GNY plug to fool the 7610 into transmitting as 10 signal and it works. I guess I will stick with that. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 2:31 PM, Ken Winterling wrote: Buck, I have had the IC-7610 and KAT500/KPA500 for almost three years and they are a very nice pair (or trio..). The IC-7610 doesn't "control" the KAT500 per se. Changing bands/frequencies on the IC-7610 doesn't cause any response from the KAT500. Only when the IC-7610 transmits does the tuner detect (sense) the RF and then adjust the capacitors and inductors to match to the current antenna. An Elecraft transceiver, OTOH, does communicate with the KAT500 (and KPA500) and changes bands/frequencies/antenna ports as the bands and frequencies are changed. The KPA500 responds the same way and changes bands by sensing transmit RF. You can build a "band data" cable to interface the IC-7620 to the KP500 and it will, with restrictions, follow the band selected by the IC-7610. The restriction is that Icom's band data voltages do not support the WARC bands. As a result, both 24 mHz and 28 mHz select 28mHz; both 18 mHz and 21 mHz select 21mHz. So, for all bands except WARC, the KPA500 will follow band selections made on the IC-7610 (or almost any other Icom such as the IC-7300, etc.). I can send you a diagram of the band data cable if you would like. It is only marginally useful and most ops of non Elecraft gear seem to just let the KPA500 (and KAT500) RF sense the transmitted RF to make necessary selections. Be sure to read the KAT500 manual section regarding "training" your tuner. GL! Ken WA2LBI On Mon, Apr 19, 2021 at 2:05 PM Buck <mailto:radiok...@gmail.com>> wrote: I made up the cable from the Molex to the TUNE on the KAT500 as described and have checked continuity from end to end. All OK. I have the SEND from the 7610 connected to the PTT RLY on the KAT500. When I change bands, nothing happens. Is there another setting I need to change in the 7610? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 10:35 AM, Lyn Norstad wrote: > Buck - > > The KAT500 Rev D1 Manual, pages 13, 14 and 15 cover the Icom connections. > > The "AH4" cable (the one you're describing) powers the KAT500 and controls > the "Tune" function. If yours isn't doing anything, the cable is probably > defective. > > What else do you have connected? > > 73 > Lyn, W0LEN > > > -Original Message- > From: elecraft-boun...@mailman.qth.net <mailto:elecraft-boun...@mailman.qth.net> > [mailto:elecraft-boun...@mailman.qth.net <mailto:elecraft-boun...@mailman.qth.net>] On Behalf Of Buck > Sent: Monday, April 19, 2021 7:42 AM > To: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net> > Subject: [Elecraft] Controlling KAT500/KPA500 with Icom 7610 > > Anyone who has succeeded, I could use some help. The connection from > the 7610 molex antenna tuner jack to the "Icom in" jack on the KSAT500 > doesn't do anything. > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft <http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> This list hosted by: http://www.qsl.net <http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html <http://www.qsl.net/donate.html> Message delivered to wa2...@gmail.com <mailto:wa2...@gmail.com> __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Controlling KAT500/KPA500 with Icom 7610
I made up the cable from the Molex to the TUNE on the KAT500 as described and have checked continuity from end to end. All OK. I have the SEND from the 7610 connected to the PTT RLY on the KAT500. When I change bands, nothing happens. Is there another setting I need to change in the 7610? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/19/2021 10:35 AM, Lyn Norstad wrote: Buck - The KAT500 Rev D1 Manual, pages 13, 14 and 15 cover the Icom connections. The "AH4" cable (the one you're describing) powers the KAT500 and controls the "Tune" function. If yours isn't doing anything, the cable is probably defective. What else do you have connected? 73 Lyn, W0LEN -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Buck Sent: Monday, April 19, 2021 7:42 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Controlling KAT500/KPA500 with Icom 7610 Anyone who has succeeded, I could use some help. The connection from the 7610 molex antenna tuner jack to the "Icom in" jack on the KSAT500 doesn't do anything. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Controlling KAT500/KPA500 with Icom 7610
Anyone who has succeeded, I could use some help. The connection from the 7610 molex antenna tuner jack to the "Icom in" jack on the KSAT500 doesn't do anything. -- k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Sudden loss of K3 RX sensitivity
I have had a similar loss of RX on my K3S. It is cured by turning the RF control down and then back up. I don't know what causes this and whether it is hardware or software related. A twist of the knob is all it takes to fix so I live with it. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 2/23/2021 8:40 AM, Mike K8CN wrote: Pete, There was a similar report on the forum last year from Per-Tore, LA7NO. In an extended email conversation we deduced his problems were caused by failed PIN diodes in one of the T/R switches, which ultimately proved to be the case. His K3 also lost TX power, unlike your situation, so you may have lost only the PIN diode in the RX path. There were many other possible causes suggested by others on the forum around that time (late July 2020) - you might read that thread and try the simple fixes first (e.g., twist and re-seat the TMP connectors) before delving into circuit/component failure possibilities. The old thread is here: http://elecraft.365791.n2.nabble.com/Elecraft-K3-problem-td7663573.html#a7663581 73, Mike, K8CN -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Fair price for a used KPA500?
As a general rule I use 80 - 85% of retail for a current production rig in excellent condition. Elecraft gear would be on the high side. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 11/20/2020 9:42 AM, Jim Miller wrote: I'm looking to buy a used KPA500 from a friend. What would be a fair price? 73 jim ab3cv __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 Main Power - ON 24/7/365?
If you leave it "on," the power supply is energized. A surge on the line could fry the unit. It happened to me with a Yaesu Quadra. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 10/20/2020 12:16 AM, Jack W9JH wrote: Is there any harm in leaving the KPA500 rear MAIN Power Switch ‘ON', 24/7/365? (not the front panel power button). I have done that with my KPA500 at the home station with no problem, but wondered about doing it at the remote site? I can operate the front panel “ON” button and “OPER/STBY” switch remotely so the amp is not running full-time, just the internal power supply. 73, Jack W9JH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 IF signal 'OUT' for external application useage
As I recall, there is an HDMI output on the back of the K4. You can choose to have it display the front panel, the panadapter or both on an external monitor. You won't need to use I/Q to an LP-PAN. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/24/2020 2:51 PM, Brian wrote: Looking at the recent (though long from complete) K4 guide, I don't see an IF OUT per se as I have in the accessory board in my K3 (or in fact the output I/Q from the KX3 I can run directly into my sound card on the computer). Does the XVTR IF OUT suffice for this? The reason I ask is that eventually my LP-PAN is going to die - hopefully not soon but I have been using it for quite some time now. I use the IF out from the K3 into the LP-PAN and then into NaP3. Now I do realize there is a panadapter on the K4 - obviously - but I DO enjoy (in fact pretty much need) the large computer display for the pana/spectrum display and DO use the NaP3 software controls for K3 functions on my keyboard and mouse for tuning and such. The display on the K4 is not the same thing I don't think. Even with some keyboard/mouse controls native to the K4 (?) the display size is a deterent to me as it exists. Apologies to the company. I assume maybe there MIGHT be a video card OUT re. the K4 panadapter at some time, but that is a maybe.. and more money. I won't be nearly the first to get a K4.. down the line probably as I have a K3S here and a K3 at the in-law's property. If I did get that 'last final rig' and it was a K4 (Iikely as I don't have much in the shack since 2000 that was not Elecraft) I would, as an older fellow then.. want the larger visual display of the computer/IF out/NaP3 sort of solution. So, do I get some IF out I can use? tnx Brian VE3VAW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] "Introduction to the Elecraft K4" manual now available
First glance, it is really well done. I love the yellow arrows and hate it when a manual says push the X button but you have no idea where the X button is. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/24/2020 1:49 PM, Wayne Burdick wrote: The first draft of "Introduction to the Elecraft K4" is now available, at: https://ftp.elecraft.com/K4/Manuals%20Downloads/Introduction%20to%20the%20Elecraft%20K4,%20rev.%20A-7.pdf This is a 40-page, full-color manual with dozens of illustrations highlighting the K4's user interface and features. The document's 8.5 x 14" form factor is uniquely suited to the K4, allowing illustrations to be virtually the same size as the front panel. A printed, spiral-bound copy of this manual will be included with the K4. I'd like to thank those who volunteered to review this and other K4 documentation, including our intrepid field testers. Additional input is always welcome. We'll be updating these documents as K4 software evolves. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rear Mike Jack Question
I would suspect a Windoze update scrambled your sound assignments. Go back and check all your settings. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/23/2020 11:56 AM, N4ZR wrote: Recently, I began trying to use the rear microphone jack on my K3 with my Yamaha boom mike, instead of using a stand-alone USB sound card and feeding the signal to the LIN IN jack. This worked fine for a couple of weeks, but today when I tried it, I got very loud white noise driving my radio and amp essentially to full scale. I have MIC SEL set to RPH BIAS, which has worked in the past. Any MIC gain setting over 7 drives the amp to full output. When I pull the mike plug out of the jack, the problem goes away. Have I inadvertently messed up another setting, or perhaps a failure in the mike? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K-4 and Expo
I didn't hear anything about delivery in the presentation. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/9/2020 9:43 AM, Martin Sole wrote: First ones end of August. Apparently Sent from my iPhone On 9 Aug 2020, at 16:37, Art Suberbielle wrote: Did Elecraft answer the big question-When will they start shipping the K-4? I am registered for the Expo but unable to get any further than Elecraft booth. Clocking on videos brings me to YouTube and the latest promo video. But no mention there of the big question. 73, Art KZ5D __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hs0...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 training
Wayne, you think of everything. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 8/7/2020 2:10 PM, Wayne Burdick wrote: Hi Bill, Yes, the built-in Info System (accessed by tapping the "?" button) is a unique feature of the K4. We're refining it as we go along. It will be available for preview/comment at some point. 73, Wayne N6KR On Aug 7, 2020, at 10:57 AM, Bill Frantz wrote: I have a vague memory that the K4 was supposed to include a built-in help system. I can see it as being just showing the relevant section of the manual, but it might be different. Is it currently available, or is it waiting for the manual. or is something different? 73 Bill AE6JV On 8/7/20 at 11:47 AM, r...@tavan.com (Rick Tavan) wrote: The menu structure is simpler and includes more text. --- Bill Frantz| "The only thing we have to | Periwinkle (408)348-7900 | fear is fear itself." - FDR | 150 Rivermead Rd #235 www.pwpconsult.com | Inaugural address, 3/4/1933 | Peterborough, NH 03458 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] 20m CW + KPA1500 = Comcast Disconnect
We have 40-year-old, squirrel-chewed, waterlogged cable in our neighborhood. Lots of unterminated connectors too. COX has spent nothing to maintain it. Switched to FIOS and problems gone. At the office, we lose Internet every time it rains. I swear Comcast is using the old Civil War telegrapher's lines. FIOS is in the ground on the other side of the street but Verizon won't extend it into our office park. It is possible to talk about something other than the K4 delivery date. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/6/2020 6:00 PM, Dave wrote: I do not have any chokes or ferries and have the beam on a Glen Martin on the roof. Shack on second floor and cable modem & router in shack. Hard wired access point and gig switch in living room. No issues. I’d ask the cable tech to show you that you are causing the interruption. Coordinate with a friend to operate your station while you observe what the tech sees. Also, how far from your house is the cable node located? Maybe they have loose/poor connections in the network allowing ingress of RF? My cable company uses 28 MHz upstream channels which are a second harmonic of 20 meters but I would think RF levels at second harmonic should not affect anything. They probably saw your antenna and pointed the finger. Dave Sent from my waxed string and tin cans. On Aug 6, 2020, at 5:33 PM, eric norris via Elecraft wrote: Dear Gang: While looking at Europe banging in on 20m FT8 this morning, I switched over to CW, cruised the band, then called CQ DX for a while. An hour later, a Comcast (Xfinity) technician was knocking on the door (no mask) claiming I was knocking out service to 600 customers (he said he had traced it to my house) and was disconnecting us from the network. During the entire time, my wife was using a VPN network connecting to her office, and I had the KPA1500 connected to the router so I could use FANticipator to keep the KPA1500 (The Big Dog) quiet and cool. We had no service interruption. The router has a mix 31 toroid choke (9 turns) coming out of one port, on a cat6 shielded cable (all cables brand new) then has another choke before going into a switch--one cable going into the XYL's room with her computer, another cable going through another choke then going into the shack. We convinced the supervisor to rehook us up. All during my operating time, we had no service interruption at our house. This was, however, the first time I had used the KPA1500 with the 20m beam wich sits directly above the house--I usually only let the Big Dog bark in wee hours of the morning on 40 and 80m. My house is 65 yrs old, none of the outlets have grounds, not even the bathroom. The entire kitchen is on one circuit, etc, etc. Before I call the Comcast supervisor, I'm hoping for some advice from the group. Not letting the Big Dog bark during the daytime on 10/15/20m is not a good solution. In the meantime I'm on WSPR at 1w. Your advice, please. 73, Eric WD6DBM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rocke...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB com port no longer working
Could be the update have scrambled your port assignments such that you now have a conflict which wasn't there before? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/22/2020 12:31 PM, Mike Harris via Elecraft wrote: Under what circumstances did this loss of communication happen? If the PC sees the K3 USP port (com?) are the programmes still pointing at it? Regards, Mike VP8NO On 22/07/2020 12:59, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s USB com port no longer working
Try a cold reboot meaning, turn off the computer, just don't restart it. Try plugging the USB into a different USB jack on the computer. Then turn the computer on. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/22/2020 11:59 AM, Howard Sherer wrote: The USB com port on my K3s is still being seen when connected to my computer but will no longer connect to any program. I have re booted the computer 2 times and power cycled the K3 and no change. Any ideas where I should look? Howard AE3T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Sub receiver intermittant failures
Check the obvious. Are you sure you didn't accidentally turn down the RF and/or AF gain on the SubRx? I know how easy it is to do. I have seen me do it. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/10/2020 2:26 PM, hawley, charles j jr wrote: Maybe you could remove the sub and send it for evaluation somewhat economically Chuck Jack Hawley KE9UW Sent from my iPhone, cjack On Jun 10, 2020, at 12:59 PM, Ray Albers wrote: I bought my K3 used. It's now a bit over six years old (S/N 8240). The seller kindly included the manual, original invoice, a repair invoice and even the Fred Cady book. The K3 was factory assembled, with a factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. If I had bought a new K3 or K3S I probably would not have bothered getting the subreceiver, but since I have it, I figured I may as well put it to some use. I don't chase DX but the notion of experimenting with diversity reception interested me. So I threw a chunk of wire over the roof and connected it to the BNC input. Admittedly not a really good diversity antenna (much too close to the main antenna, for one thing) but OK to play with. When I found that the Carrier Operated Relay was operating as I sent CW, in order to protect the sub-receiver, I stopped until I could get and install an Array Solutions Receiver Front End Protector. So I had many months of fun and even found that at times there was enough diversity between the antennas to help with reception in the face of fast QSB. And then suddenly the sub started failing. I check it when turning the radio on, and often the sub is working but then after a while it stops. It doesn't seem to be correlated to transmitting, i.e., it may stop after I've been sending but not always and never right away. There has even been a time or two when it didn't work initially but then came back to life after a while. Often it will work on 20 and up but not on 80, 40, and 30. I've opened the radio, taken the cover off the sub, and poked, wiggled and re-seated everything I could get my hands on. I've even tried this poking while the radio was powered up and the sub was quiet, to see if any poking could bring it to life. Nada. I suppose at this point the "right" thing to do would be to send the radio to Elecraft and I may do that at some distant future point, but right now I feel that I don't want the sub badly enough to warrant the expense and time. Of course if meanwhile anyone has a miracle cure to suggest, that'd be great! Thanks for listening. 73 Ray K2HYD __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S dead after attempted firmware update -FIXED
Please tell us what you did so everyone can learn from your experience k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 6/6/2020 12:19 PM, Ray Spreadbury via Elecraft wrote: Thanks to Paul GM0BKC who put me on the right track. Radio now fine & Firmware update completed Ray G3XLG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] FIXED--was NOT the feedline
Electrical tape, then the self-fusing tape, then electrical tape. The first layer of electrical tape makes it easier to removing the fusing tape later Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/3/2020 12:58 PM, Clay Autery wrote: I've got to get to class, but there are a NUMBER of different methods and procedures that are used. Self-fusing tape properly applied covered by top-quality electrical tape to protect the self-fusing tape from UV... There are specific points on installation that you want to observe. Someone will chime in with deatil or a reference to a procedure... If not, I will do it later... Class in 3 minutes. 73, __ Clay Autery, KY5G (318) 518-1389 On 06/03/20 10:35, Peter Dougherty wrote: No, and I wasn't sure how to accomplish this. It's stainless hardware, but I'm guessing I should probably wrap the feedpoint up in self-annealing tape and Scotch 88 just to be safe. - pjd -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Dave Cole Sent: Wednesday, June 3, 2020 7:27 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] FIXED--was NOT the feedline Hi, Is the open end of that feedline where it connects to the antenna weatherproofed? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/2/20 8:15 PM, Peter Dougherty wrote: HI all, A postscript to the problem. First off, a huge thank you to the many replies received. I was fortunate that the problem was not in the KPA-1500 as I'd originally feared. Much troubleshooting within the past few days. Originally the amp was "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or wet weather. This prompted the replacement of both the antenna and feedline. The hard faults were still occurring, until it was suggested the Ten-Tec 238 tuner that I was using exclusively for the built-in antenna switch was now the issue. I took this out of line today, and lowered the tower to fine-tune the LFA's feed point and now everything is humming along just nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry conditions. I will keep my fingers crossed that the wet weather expected in the next day or so won't bother it all that much. The final step was to move the 6m feedline from the secondary inlet box to the main antenna switch on the big tower. The downside here is I now have an additional 70 feet of BuryFlex in the line, so I'm guessing a total of about 1.5 to 1.7dB of feedline loss. This is something I would like to address in the future with an eye to dropping it below 1dB. Screencaps: https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s witch.png?dl=0 And https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 0tuning.png?dl=0 And for the balun discussion, this is what's in place, before the double-walled heat-shrink was applied: https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl =0 - pjd __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@w2irt.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k...@montac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 Kit???
Will the option modules be available to be shipped at the same time as a factory built K4? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/18/2020 12:12 PM, Wayne Burdick wrote: We certainly appreciate the interest in a K4 kit. It does take longer to get the kit version out since many new drawings are required to accurately communicate details on modules, cables, and hardware to builders (as opposed to in-house assembly personnel). Can't really put a date on the kit version at this time, but it will be well after we begin shipping the K4 and K4D. There's an intermediate approach that many of our customers have used over the years: get an assembled basic radio, then install option modules yourself as required and as time/availability permits. Option modules will come with detailed assembly instructions. 73, Wayne N6KR On May 17, 2020, at 2:14 PM, Charlie T wrote: Yep, just more fun to "build" one eh? Actually, I'm just plain "Cheap" and hoping to save a few bucks on a kit version. However, recent Elecraft kits are more like erector sets, but I DID build a K2 complete with soldering stuff. 73, Charlie k3ICH -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Steve KC6ZKT Sent: Sunday, May 17, 2020 4:34 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K4 Kit??? On 5/15/20 8:08 PM, Bill Frantz wrote: And I'm still waiting for the kit version. Same here. I'm happy to wait for the kit version. --... ...-- SteveSgt, KC6ZKT, @CM97bj73 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Rig forCW
A used K3 would be my recommendation if you don't need portability. The K3 is still one of the finest radios ever made and can run the full 100 watts when QRP just won't cut it. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 5/12/2020 9:06 AM, Ted Roycraft wrote: Or maybe pick up a used K3. On Tue, May 12, 2020 at 8:44 AM W0FK wrote: The KX3 allows you to add roofing filters (KXFL3 option), wherease kx2 does not. “ The KXFL3 is actually 4 different filters that are shared between Phone and CW modes. Containing 2 filters for each mode, the filters switch points are: CW Mode: 500 hz and 1500 hz Phone mode: 1800 hz and your choice of 2400 or 2900, menu configurable” If the kx3 is your main radio, and your focus is CW, having the ability to add narrow passband filtering is essential. Are you planning to run more power than 10-15 watts? If so, adding capabilities up to 100 watts via an external amp is pretty simple. If you’re going to be adding more power, and don’t plan on using the portability of the kx3, consider a used K3/100 which has a lot more flexibility for narrow roofing filters, 100 amps built in and an easier path to adding a kw amp. 73, Lou, W0FK - St. Louis, MO "The difference between stupidity and genius is that genius has its limits." Albert Einstein -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ted.roycr...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Poor CW note more testing and a question (rather long-ish...)
My HV shows 74 volts resting and 60 key down k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/26/2020 4:26 PM, Chuck Chandler wrote: After several reports that my CW tone sounded less than perfect I've been on a hunt for possible causes. Looking at the TX waveform on my P3 it does look more sausage-shaped than I see in the P3 manual. So far I've determined my power supply was a little low and sagging a little under full power. After changing cabling and adjusting the PS, I now have 14.2V displayed on the K3 at rest, 13.9 to 14.0V at the 25W level used to drive the KPA500, and 13.7 to 13.8V at 100W output. All that now seems as it should be, but the waveform on the P3 is still elongated. My KPA500 on a 240V outlet shows HV of 73.5V at rest, 57.3V with 500W output. This is a little on the low side, and I may move the HV tap to bring it back up above 60V under load. On air testing today with a neighbor I got the report that my CW sounds just fine until the amp is in line. Then it is described as "some kind of artifact... like a bell sound... like a delay." This is consistent with the other report I had been getting of a "ringing, bell-like" note to my CW. This is most apparent at 30 wpm, as I would be running in a contest. So far, all the reports I have received from fellow amateurs have been after a CW Ops weekly contest, during which I usually am running at 30 wpm and 500W output. During rag chews with a bug at 22-25 wpm and 500W nobody has said anything bad about the CW note. The rig, KAT500 tuner and amp are interconnected via two E850463 Aux Interface Cables as shown on page 5 of the KAT500 Manual, Rev. C6 (3/8/2017). CW for contesting is generated by N1MM+ via the K3S USB interface. I have a K1EL Winkeyer on order in case the root cause is the computer... but that elongated waveform remains the most likely factor to resolve. My guess is the root cause of all this, power supply issues resolved for now, is the elongated waveform I see on the P3. My rise time seems to be at least 3 or 4 times longer than what I see in the ARRL product reviews or even in the P3 manual showing an example of a CW waveform. I have submitted a contact form at the Elecraft support web page, but its the weekend and with them all working from home I wouldn't mind the collective wisdom of the group as to any other avenues of investigation. And, many thanks for the help so far! 73 de Chuck, WS1L __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4/0
As I recall, it was an iPad running a Windows emulation. That's too much for my feeble brain to comprehend. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/24/2020 12:25 PM, Grant Youngman wrote: I believe it was a Windows tablet. My recollection is that the message was that iPad support would come later. There may have been some progress, but I haven’t seen anything new officially from Elecraft. Might have missed it though. I’m personally hopeful that there will be a fully functional macOS app for remote operation. I run Windows 10 under Parallels to support several ham apps for which the developers have decided that Windows and only Windows is necessary. But that would be an unfortunate and unnecessarily messy model to embrace. Grant NQ5T On Apr 24, 2020, at 12:06 PM, Gmail wrote: It was a tablet, I’m not sure it was an IPad Ray W8LYJ Sent from my iPad On Apr 24, 2020, at 09:15, Mark Musick wrote: Steve, I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. 73, Mark, WB9CIF __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S poor CW
WKMini is $55 from hamcrafters2.com. It stores the USB commands (which come very fast and are not subject to timing issues) and decodes into perfect dits and dahs. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/23/2020 2:05 PM, Jim Rhodes wrote: Any software only CW implementation is going to have timing issues, especially with the newer operating systems. Best to offload that task to a processor with nothing else to do. Winkey or Mortty or something similar. On Thu, Apr 23, 2020, 13:00 Jim Brown wrote: On 4/23/2020 10:46 AM, Frederick Dwight wrote: Changed to a winkeyer with USB interface. This has always worked great with all rigs, including my present K3S. Winkeyer (and winkeyer emulations) are very widely used by serious contesters, some of whom tool along at 40 wpm. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jimk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Elecraft K3s, etc. bonding
Poke a hole in the braid and sandwich it between two large washers. Or drill a hole in strap and sandwich that. You can then put multiple holes in the strap to connect other wires. I wish Elecraft had larger ground lugs. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/23/2020 9:11 AM, Randy Farmer wrote: Thanks for the info, Dave. Your approach works fine IF you're using the ground bar ground technique. I'm attempting to follow Jim's advice (see slides 91 through 113 in his Grounding and Audio presentation referenced below). For this, you need bond wires between the individual boxes in the station. BTW, I have found that 1/2" braid can be rolled up and crimped in 45A Power Pole connectors. 73... Randy, W8FN On 4/23/2020 8:53 AM, Dave Cole wrote: Hi Randy, I rebuilt my shack six years ago, and documented a bit of that. One part was connecting grounds to the back of the rigs. See: https://www.nk7z.net/rebuilding-the-shack/ Look at a few of the photos. One shows a large copper ring terminal, which will fit a K3, etc., and how it was connected to 3/4 inch braid. Basically I folded the braid, inserted it and some solder cut to length into the ring terminal solder bucket. I then held it in place with a set of pliers, and hit the ring terminal with a Burns-O-Matic torch. You can see the jig I had set up on the top of the glass jar. Yes... I know grounds are not supposed to be soldered... I am sure there are better ways... This is just what I did. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 5:37 AM, Randy Farmer wrote: I'm currently in the process of wiring up my new station and I happen to be working on the equipment bonding phase for my pair of K3s SO2R station. I'm doing my best to get decent connectivity between the station components, but can't really figure out how to terminate large (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, especially since something like six bond wires need to be attached to the transceivers. There appear to be no available ring terminals that will fit these small screws; the smallest I can find are for #10 studs. Even by using a threaded standoff installed in the K3 ground nut and a longer screw to stand the rings off, stacking a bunch of these huge terminals is extremely difficult. Providing some means of reasonably quick disconnect for servicing purposes is equally difficult. Exactly how can I go about connecting big wires to little ground posts? 73... Randy, W8FN On 4/20/2020 10:22 PM, Jim Brown wrote: On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: I'm asking what method and attachment point, to each piece of equipment, you experienced K-Line owners use to bond the K3s, P3, SP3, etc. and then on to the station ground. I use wires soldered to screw lugs, making sure that the attachment point is not insulated from the chassis by paint. Some of the equipment has a dedicated grounding screw. Shells of DB connectors SHOULD be bonded to the equipment chassis, but not always -- some mfrs screw up and fail to do that. Some of my equipment goes out in the field from time to time, so I use single circuit Power Pole connectors to make that easy. I'll use 2-6" between the lug and the PowerPole, then make a loop soldered to a PowerPoles that connect to each piece of gear in the string (so each connector has two wires). There are lots of suitable variations on this, depending on how the shack is laid out. These are the slides for my talks on station power, grounding, and bonding. http://k9yc.com/GroundingAndAudio.pdf 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w...@windstream.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w...@windstream.net __ Elecraft mailing list Home: http://ma
Re: [Elecraft] Electrolytic Capacitor failure
I don't know that I would run a K3 off a 20A power supply. You're stressing both. Did you mean to say 30A? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/15/2020 3:31 PM, Ray Albers wrote: I could use some knowledge and/or opinions on this subject (Radio/Elecraft related only because it deals with a power supply that powers a K3!) The other day I was about to initiate a call, and as soon as I touched the "dah" paddle the K3 instantly shut off. The cause was that the power supply voltage dropped too low when the radio demanded more current. The power supply is an Astron RS-20A, a big hulking linear supply that I really like. Huge heavy transformer and two series-pass transistors mounted on big heat sinks - thus, quiet acoustically (no cooling fan) and electrically (no RF hash from switching). I have two of these - one that I bought for my new radio when I got back into ham radio after a long absence and the other because I was at a hamfest where someone had a pile of them that he was selling for only $20 each - who could resist? So I trotted out the spare supply and got back on the air. Now to troubleshoot the bad supply. I had trouble with this one about five years ago. The output transistors are plugged into sockets, and on one socket the contacts for the emitter pin had gotten loose, and there was a vicious spiral of heat causing more resistance causing more heat until eventually it actually melted the transistor pin and left a black char on the socket. When I replaced the socket that time, I decided to solder the emitter pins on both transistors. It took me a long time to find the problem this time. Various tests told me the transformer, the full-wave rectifier diodes and the pass transistors were fine. Finally - with some help from hints in a great article about Astron supplies on repeaterbuilder dot com - I figured out that the supply voltage to the regulator board was too low, so there was not enough "oomph" available to drive the output transistors when high current was demanded. This supply voltage comes from a center tapped transformer secondary feeding two small diodes (both of which checked OK) to a 1000uF 35 V electrolytic. Turns out the capacitor was bad. It's a typical aluminum case with blue plastic covering (which I assume to be heat-shrink plastic because of the way it is completely molded around the capacitor.) Replacing it brought the supply voltage up to spec, and now everything works fine. But I was surprised about the capacitor failure. Absolutely no visible signs of anything wrong - no bulging, leaking, etc. And the soldering to the PC board is perfect. So here's my question for the group: What do we know about electrolytic capacitor failures? I know that anyone restoring an old ham transmitter or receiver or BC receiver almost always has to re-cap it, because the ancient electrolytics, which are usually wet electrolytics in chassis-mounted cans, will have gone bad. But this is the first time I've ever had a failure of the more modern type electrolytics. A quick search of capacitor failure on Google shocked me when I read claims in several places that these capacitors are only expected to have a two to five year life!! Can that be? I know I've got lots of radio gear that's way older than that and still working fine. To do this repair, I replaced a capacitor that might only be 5 years old with one that is probably twenty years old! Words of wisdom and enlightenment would be most welcome! 73 Ray K2HYD (K3 #8240, KX-3 #6827) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA 500
A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/10/2020 12:43 PM, Irwin Darack wrote: Agreed. Many people buy the cheap ones made in Chinaand they fail. Irwin KD3TB On Fri, Apr 10, 2020 at 12:28 PM Jim Brown wrote: On 4/10/2020 8:45 AM, Irwin Darack wrote: In my experience, coax connectors, barrel connectors, etc. are always fail points when there is a sudden increase in SWR as power is increased. They oxidize over time and sometimes just reconnecting or replacing is the first step before taking the amp apart. If this is happening, I'd suspect 1) the connectors have gotten wet or 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're JUNK. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to idar...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA1500 hum - problem solved
I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/5/2020 5:33 PM, Carl Yaffey wrote: No hum using a dummy load. No hum using a dipole. Hum only with my all band vertical. Thanks for the suggestions. 73 K8NU __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 SSB Filters
Why go halfway? I would go with the 1.8 as a roofing filter. Crank the DSP down to 1.6 and slew the passband to get the best readability. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/31/2020 12:17 PM, John Simmons wrote: David, I'm looking to upgrade my filters for SSB. I have the 2.8 filter installed, which has steeper skirts than the 2.7. I'm wondering if the 2.1 would have a noticeable enough effect to justify the cost. -de John NI0K David Smith wrote on 3/31/2020 10:26 AM: Been interesting reading the comments on SSB contesting and filtering. As a serious SSB contester from way back in the 80s, side rejection from other contesters (especially where we are all bunched up on 40 meters and also when the shortwave broadcast stations come on) has always been a topic of conversation with my fellow ssb ops -- which radio to buy, which filter to use, dsp, etc. I have the 2.1 khz, 8 pole roofing filter installed in by my K3s BTW. With that said, I think the bleeding over QRM from other ssb stations (especially on 40 meters) is just the “nature of the beast” with ssb contesting. And boy is it a killer on the ears during and after a contest Anxious to hear other comments from other. David ND4Y Sent from Mail for Windows 10 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jasimm...@pinewooddata.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
How about this one? K3S CW mode. Tone at 14.053.953 with shift at 650
Hz, lox cut at .10 High cut at 1.20. Same tone at 7.026.765 and
21.074.113 but weaker. The tone is strong enough to show a spike on the
P3.
Tone goes away if I move the shift off 650 Hz or change the low cut or
high cut. But the spike still appears on the P3 screen? Something in
the P3?
k4ia, Buck
K3s# 11497
Honor Roll 8B DXCC
EasyWayHamBooks.com
On 3/30/2020 5:50 PM, Keith Trinity WE6R wrote:
Don't forget to do the TX gain cal, that gets wiped during EE INIT.
Then save the config.
**BUT; You might try loading your saved config, then read my notes;
From my notes;
*_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA
mode(s) + N/A_*
_Fix;_Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead
of .01
Notes; Any of the following, in any combination, will lock out the
toggle to HI CUT / LO CUT:
CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing)
CW mode and CONFIG:PB CTRL Shift=.01
DATA mode (FSK/AFSK)
Keith WE6R
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Re: [Elecraft] When might there be a P3 sale or drop in price
P3 doesn't have a mouse point-and-tune feature that I know of. LpPan with NaP3 software does. On Mon, Feb 17, 2020 at 10:42 AM wrote: > I've been fighting getting the P3 for years. After trying to get SDR based > pan adapters to work reliably (I like the mouse point and tune feature) > I've > decided I want to buy a toaster. > > Just plug it in and it works. > > A fully loaded 200watt P3 with video card..etc is hard to swallow when I > can > buy a new HF rig with the Pan adapter built in for less. > > Are there plans to have a sale or bigger discount? > > My time frame for purchase is March. I'll probably be going to the > Charlotte, NC Hamfest for the purchase unless I'm on call that week. > > Thanks in advance. > > > > Jerry Moore > > AE4PB > > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Which meter to trust?
A man with two watches never knows what time it is On Fri, Feb 7, 2020, 1:12 AM Paul Braiman via Elecraft < elecraft@mailman.qth.net> wrote: > Putting my brand new KPA-500 through its paces and I’m noticing a > significant difference between the peak power displayed on the amp, and the > peak power displayed on a Telepost LP-700 station monitor. With the amp > peaking at 500 watts, the LP-700 will often show peaks in the 600+ watt > range. The trapezoidal display on the LP-700 does not show any > non-linearity during such operations. > > Is this then simply a difference in how the power is metered? > > As always, your collective wisdom is both appreciated and valued. > > Paul, W2PIR > > Dare Mighty Things. > -Jet Propulsion Laboratory > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 on-air testing, etc.
The word was the kits would be about 6 months after the first release. This allows them to get experience assembling at the factory and allows time for writing the assembly manuals. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 1/14/2020 11:29 PM, Charlie T wrote: I'm guessing there's no new info on the K4 kit version yet. 73, Charlie k3ICH -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Paul Van Dyke Sent: Tuesday, January 14, 2020 9:27 PM To: Wayne Burdick Cc: Elecraft Reflector Subject: Re: [Elecraft] K4 on-air testing, etc. Thank you Wayne Looking for it to arrive (along with 1000's of others) Paul - KB9AVO/KP2 chasing from the beach on St Thomas KX3 #24, KXPA #22 on A123 batteries On Tue, Jan 14, 2020 at 9:51 PM Wayne Burdick wrote: Hi all, We've been making contacts with our K4s as often as possible, often in conjunction with checkout of new software. But the Elecraft CW an SSB nets are another great resource that we've been overlooking. We'll be getting on these nets frequently in the future. Also note that we're going to start releasing K4 operational screen shots as part of a newsletter series that begins soon. The intent is both to inform potential users about how things work and to solicit additional feedback. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pvandyke1...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pin...@erols.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 - Power cable voltage drop
The reliable place to measure the voltage at the K3x is using the supply voltage display meter in the radio. I was surprised to find mine was significantly low. I thought it was voltage drop but changing the supply cable didn't make much difference. Turns out the Astron power supply was more than a volt low and the meter on the supply had been cranked up to make it appear to be correct. I used two separate VOMs to set the power supply and then adjusted the meter to make it agree. Moral of the story: don't rely on the meter on the power supply and assume a low reading at the radio is due solely to voltage drop. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 12/23/2019 2:26 PM, Phil Kane wrote: On 12/22/2019 9:44 AM, Bob McGraw wrote: I also added a dedicated ground between the ground screw on the back of the radio to the ground screw on the power supply. That's for "bonding". Where do you pick up "ground" - at the radio, at the PS, or at some other point? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K2] USB version for USB to serial adapter
There were many counterfeit chips so the patent holders put code in their drivers to disable the counterfeits. The USB version (1, 2 or 3) does not matter. You want to get a genuine converter. Best way to guarantee that is to buy your converter cable from a reputable source. Elecraft sells one. So does MFJ. I am sure there are others. Just don't get some cheap knock-off from the Internet. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 12/6/2019 10:45 AM, NJMike wrote: I want to connect my Windows 10 tablet to my K2. I have the KIO2 module installed and I have built the K2 serial cable. I have read the relevant material on the Elecraft website about avoiding the Prolific chipset. The USB port on my tablet is 3.0. My question is this - can I use any version of USB (1.1, 2.0, 3.0) to serial adapter to connect the tablet to the K2 cable or is one better than the others? Thanks, Mike -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
Perhaps the K4 should have been a 40V radio and the K3S remain as the
12V "portable" or "field" version.
k4ia, Buck
K3# 101
Honor Roll 8B DXCC
EasyWayHamBooks.com
On 11/4/2019 5:02 PM, Joe Subich, W4TV wrote:
On 2019-11-04 4:44 PM, Scott Manthe wrote:
> Elecraft's design philosophy dictates that their radio be capable of
> portable/field operation, so that's how they design their radios.
> They're lightweight, efficient, and operate off 12 volts.
If that's the design philosophy, limit the power output to 60 W PEP.
Elecraft already have *two* other 12V capable radios - the KX2 and KX3 -
of one doesn't count the K2. *WHY* create another dirty 12V radio
("active predistortion" is not the solution) when one can have a clean
60W radio at 12V or a clean 200W radio at 40V?
Build a DC-DC supply for the 40V PA stage if one wants to run it from
an automobile electrical system (or install a separate 48V alternator,
regulator and battery specifically for the PA stage).
Increasing transmit IMD by a factor of 40 just to operate the radio
at 100 W PEP on a 12 battery is unconscionable given today's state
of the art. It was different when 48V transistors/FETs were not
available but that ship sailed almost 20 years ago.
73,
... Joe, W4TV
On 2019-11-04 4:44 PM, Scott Manthe wrote:
Elecraft's design philosophy dictates that their radio be capable of
portable/field operation, so that's how they design their radios.
They're lightweight, efficient, and operate off 12 volts. Lots of
other manufacturers love giant, heavy rigs. Elecraft doesn't.
73,
Scott N9AA
On 11/4/19 3:52 PM, David Gilbert wrote:
I agree completely with all of that, but with the discontinuance of
the K3s it seems that Elecraft doesn't really consider the K4 to be
strictly a base station rig. Their continued insistence upon
everything being 12 volt capable is a bit of a puzzlement for me.
73,
Dave AB7E
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Re: [Elecraft] Creaking KPA-500
My creaking went away after a while. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/30/2019 1:21 PM, Michael Walker wrote: The creaking is due to the Heatsink expanding and contracting and the screws trying to hold them in place. It is normal and if you loosen screws, you may hear the noise go away. If you tighten them, you might break the screws. I'm not sure which way it will go, but it is normal. Mike va3mw On Mon, Sep 30, 2019 at 1:32 PM Bob McGraw K4TAX wrote: Phil et al; My factory built KPA500 did a good be of cracking and popping for 3 or 4 months when first received. But it has stopped. Guess all the metal parts settled into a comfortable position and all is now well.I considered opening it up, tightening or loosing bolts and screws.But procrastinator me just waited and it stopped by itself. I think that's good. Love the amp, it is a great performer. 73 Bob, K4TAX On 9/30/2019 7:59 AM, Phillip Zminda wrote: My kit-built KPA-500 is about 8 months old. Lately I’ve been running a lot of FT8 and FT4 at around 150 to 200 watts. I have really noticed a lot of loud creaking from the KPA-500 after a few QSOs on digital modes. The manual does indicate that some noise is normal but this does seem excessive, I don’t recall noticing it when on CW or SSB, although I haven’t done much contesting where the amp would have a lot of running time. I expect I may need to tighten some screws inside. I really don’t want to do any more disassembly than necessary and would prefer not to ship back to Elecraft either. What is the likely culprit and how much disassembly is required to get to the necessary screws? Thanks, Phil N3ZP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to va...@portcredit.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New Revision of KPA500 LPF TR Switching Rework Rev. E
I didn't see anything on the Elecraft support page about a mod so I put in a ticket a few days ago inquiring about my KPA500 Serial 1503. So far, no answer. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/27/2019 11:38 AM, Lynn W. Taylor, WB6UUT wrote: Is this an official Elecraft modification? On 9/27/2019 2:58 AM, Petr, OK1RP/M0SIS wrote: Roy, The modification can be done as prevent action in order to avoid the loosing the full power (12m) accompanied by burning smell or it can be the solution for your already ruined amplifier. The typical KPA500 misbehavior sounds like it is arcing inside and smells the classic something is burning smell. The SWR LED's are dancing upwards as it arcs. If you have connected the KAT500 tuner then it has the SWR around 1.3:1... and power is lost. - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kx...@coldrockshotbrooms.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] new revision of KPA500 LPF T_R Switching rework Rev.E guide available
Do we have a first serial number that is "safe?" I hate to take mine apart to see if this is needed. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/24/2019 9:27 AM, Petr, OK1RP/M0SIS wrote: Hi folks, just FYI... Latest updated revision (rev.09-19) of the Elecraft KPA500 - LPF T/R Switch Rework Rev. E guide is available on my blog here: http://ok1rp.blogspot.com/2017/02/elecraft-kpa500-lpf-tr-switch-rework.html Document updates in rev.09-19: 1. All 7 components to be modified or replace in the modification are now highlighted on the PA/LPF board picture 2. I added short instruction how to remove the PA/LPF module from the KPA500 cabinet (ref. to KPA500 Kit Assembly Instruction manual) 3. Picture of the PA/LPF board with all 7 components marks is available with better resolution. The Elecraft KPA500 LPF T_R Switching rework Rev.E guide_24Sep19 document is also available in .pdf format upon email request. Maybe it will help, - 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 & K3S for sale
Don't sell the K3 short. The basic K3 is still one of the finest radios ever made and the difference between it and newer radios is hardly noticeable to the human ear. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/26/2019 8:56 PM, Bob McGraw K4TAX wrote: I'm keeping my K3S.I'll decide on a K4 next year. Bob, K4TAX Sent from my iPhone On Aug 26, 2019, at 5:33 PM, Charlie T wrote: Obviously, a lot of us are dumping our K3's (plural) & K3S' (also plural) as their prices have fallen through the floor with the introduction of the K4. (Can't say I'm thrilled about THAT, but it IS inevitable as new models are introduced.) However, a lot of the 'for sale' listings cleverly try to sneak the "S" onto the model number, or imply that it is a K3S when the radio really is NOT a K3S. Bear in mind, if your radio does not show K3S on the front panel, it is a K3, albeit upgraded, but NOT a K3S. The new synthesizer boards will improve performance, but there are some subtle differences between a K3 and a K3S that no amount of updating with new boards or mods can change. While the K3 concept of buying a newer "upgraded" synthesizer board for example, rather than a new radio sounds like a great idea which will surely change the performance, I feel it is NOT a feasible solution, as it generates a worthless board that is only good as a pistol target. My particular course of action was to sell my K3 after I had taken out what ever options I could add to a new K3S. That way, I get the latest production changes (note, there ARE a number of them pertinent ONLY to the K3S) and, no junk boards are generated. Too bad I can't do the same thing with the K4. (Got a nice bullet here I'm about to bite on !) 73, Charlie k3ICH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Serial port problems
Many USB>Serial cables contain counterfeit chips. The legitimate makers fought back by installing driver instructions that disable the counterfeit. Maybe your update finally caught up. The Elecraft cables are legitimate. Don't buy cheap knock-offs from the Internet. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 8/5/2019 9:49 AM, Gary Tuck via Elecraft wrote: The culprit was the serial/USB cable. Got a new one from Elecraft and all is well. Thank you all. 73, Gary W7TEA On Jul 16, 2019, at 1:17 PM, Gary Tuck wrote: For the first time I am having difficulties communicating with my K3/P3. The only thing which has changed is an upgrade to the Mac OS. Now running 10.14.5 Mohave. I reinstalled the FTD driver for the serial cable, tried both my iMac and MacBook and neither finds the P3 responding. I have not been on the air for several months so I am not sure when the issue arose. Has any had similar experiences and solved them? 73, Gary W7TEA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 and mouse control
Yes, you will. There is a USB port of the front of the radio and two more on the back. You can plug in a keyboard, mouse, Kpod, whatever. I specifically asked about the point and click QSY and it is there. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 5/21/2019 6:07 PM, Ed Schuller via Elecraft wrote: I have looked over the information from Elecraft on the K4, and unless I missed this, it does not appear that you will be able to plug a mouse into the radio and click on a signal on the screen to move the VFO. Am I correct in this assumption or is there in fact a provision for a mouse? 73, Ed K6CTA Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KAT4 ATU
The base K4 does not include the ATU, just like the base K3 did not. Some people don't want or need an ATU in the radio. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/21/2019 11:05 AM, Dick Dickinson wrote: I notice that a KAT4 ATU is offered as a separate purchase item. In the brochure, that ATU is listed under K4 Key Specs and Features. Is it safe to assume the basic K4(F) includes the KAT4 ATU? Perhaps the KAT4 ATU is listed separately as a possible option on a future K4 kit. Or, perhaps the KAT4 ATU is offered as a 2nd tuner to match a 2nd antenna as could be found in a K4D. Hopefully we can get some clarification. 73, Dick - KA5KKT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K4 Observations
I heard that as well. Elecraft's modular construction will allow for component upgrades as it did with the new synthesizers, thereby extending the useful life of the radio a couple of generations. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/20/2019 12:30 PM, Drew AF2Z wrote: Yes, I think Eric mentioned in the video that an upgraded ADC for the K4 might be offered in a few years. Does this mean a higher resolution ADC (18 or 20 bit)? 73, Drew AF2Z On 05/20/19 08:59, Ed K1EP wrote: On Sat, May 18, 2019, 23:45 Grant Youngman wrote: I think your observations are spot on in most respects. While the basic K4 is certainly going to be a great radio, it will likely NOT have the strong signal handling characteristics of the K3/K3S. There will still be the likelihood of A/D clipping suffered by virtually all 16-bit SDRs in a high-density RF environment. I would guess that once a better preforming A/D becomes available and affordable, a plugin upgrade will be available to replace the current A/D, similar in concept to the synthesizer upgrades in the K3. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Sensitivity - Was K4 Observations
Here's a question about sensitivity. We used to say if you could hear the atmospheric noise, that was enough. Time to reduce RF gain. New modes hear below the noise and DSP is getting better at removing it. Does that mean our "old" wisdom is now wrong and sensitivity below the noise level is useful? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/19/2019 6:58 AM, John Stengrevics wrote: Buck, Did you happen to discuss: 1. Noise blanker improvement 2. Improvement in sensitivity Relative to the K3S? 73, John WA1EAZ On May 18, 2019, at 11:09 PM, Buck wrote: The following is offered based on my observations and discussions at the Elecraft booth. I am *not* an official, or even unofficial, Elecraft spokesman and stand willing to be corrected. First, this is going to be another game-changer from Elecraft. The radio will have outstanding performance figures and an interface to die for. The screen is beautiful and functions can be controlled from either buttons or the touch-screen. There is band-stacking on the touch screen, a nit people have complained about on the K3. The radio is full SDR as opposed to the analog front end of the K3. However an option, the K4HD, is a superhet receive function. Like previous Elecraft radios, this can be added later if you think you need it. Preliminary is that it will not be necessary unless you operate in the presence of strong stations (multi-multi). Another option has a second set of band pass filters and ADC module that will allow the two receivers to operate on different bands or antennas (K4D). The radio contains a Linux computer so all this magic does not require an external computer except for logging or audio input. The rig will be addressable locally or over the internet with no additional software. I saw it operated from an iPad and Android is coming. The iPad screen looked exactly like the front panel, including the panadapter. There are multiple USB ports, an Ethernet port, RS232 and an HDMI port so you can project the front panel, or parts of it, to an external monitor. The panadapter looks awesome on the external monitor and you will be able to point and click to QSY the radio. The prices are targets but I got the impression the final will be very close. The cost is less than a fully loaded K3s. The kit version will be cheaper than factory-assembled and ship several months later to allow time to write the assembly manual. Target for the factory version is November. I suspect the K4 will replace the K3 series as K3s sales are sure to suffer because of product age and competition from the K4. I did not hear any talk about sun-setting the K3s when the K4 comes out. I am sure there are many people who will want to buy the basic K3s and upgrade over time (or not) rather than plunk down $4,000 for the K4. What does this do to the value of a K3 or K3s? I expect there will be some coming on the market. Anyone who buys, or retains, a K3 or K3s will still have one of the finest radios ever made. We are at the point where the difference among the top 5 or so on Sherwood's charts is a decibel or two, almost within the margin of error and certainly beyond the ability of the human ear to discern. So, don't panic. The demand for the K3 series will be strong for many years to come. Keep an eye on the website as more information comes from Watsonville. -- Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K4 Observations
Sorrily not but, knowing Elecraft and the excellent work they do, I am sure this radio will be outstanding. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/19/2019 6:58 AM, John Stengrevics wrote: Buck, Did you happen to discuss: 1. Noise blanker improvement 2. Improvement in sensitivity Relative to the K3S? 73, John WA1EAZ On May 18, 2019, at 11:09 PM, Buck wrote: The following is offered based on my observations and discussions at the Elecraft booth. I am *not* an official, or even unofficial, Elecraft spokesman and stand willing to be corrected. First, this is going to be another game-changer from Elecraft. The radio will have outstanding performance figures and an interface to die for. The screen is beautiful and functions can be controlled from either buttons or the touch-screen. There is band-stacking on the touch screen, a nit people have complained about on the K3. The radio is full SDR as opposed to the analog front end of the K3. However an option, the K4HD, is a superhet receive function. Like previous Elecraft radios, this can be added later if you think you need it. Preliminary is that it will not be necessary unless you operate in the presence of strong stations (multi-multi). Another option has a second set of band pass filters and ADC module that will allow the two receivers to operate on different bands or antennas (K4D). The radio contains a Linux computer so all this magic does not require an external computer except for logging or audio input. The rig will be addressable locally or over the internet with no additional software. I saw it operated from an iPad and Android is coming. The iPad screen looked exactly like the front panel, including the panadapter. There are multiple USB ports, an Ethernet port, RS232 and an HDMI port so you can project the front panel, or parts of it, to an external monitor. The panadapter looks awesome on the external monitor and you will be able to point and click to QSY the radio. The prices are targets but I got the impression the final will be very close. The cost is less than a fully loaded K3s. The kit version will be cheaper than factory-assembled and ship several months later to allow time to write the assembly manual. Target for the factory version is November. I suspect the K4 will replace the K3 series as K3s sales are sure to suffer because of product age and competition from the K4. I did not hear any talk about sun-setting the K3s when the K4 comes out. I am sure there are many people who will want to buy the basic K3s and upgrade over time (or not) rather than plunk down $4,000 for the K4. What does this do to the value of a K3 or K3s? I expect there will be some coming on the market. Anyone who buys, or retains, a K3 or K3s will still have one of the finest radios ever made. We are at the point where the difference among the top 5 or so on Sherwood's charts is a decibel or two, almost within the margin of error and certainly beyond the ability of the human ear to discern. So, don't panic. The demand for the K3 series will be strong for many years to come. Keep an eye on the website as more information comes from Watsonville. -- Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K4 Observations
The following is offered based on my observations and discussions at the Elecraft booth. I am *not* an official, or even unofficial, Elecraft spokesman and stand willing to be corrected. First, this is going to be another game-changer from Elecraft. The radio will have outstanding performance figures and an interface to die for. The screen is beautiful and functions can be controlled from either buttons or the touch-screen. There is band-stacking on the touch screen, a nit people have complained about on the K3. The radio is full SDR as opposed to the analog front end of the K3. However an option, the K4HD, is a superhet receive function. Like previous Elecraft radios, this can be added later if you think you need it. Preliminary is that it will not be necessary unless you operate in the presence of strong stations (multi-multi). Another option has a second set of band pass filters and ADC module that will allow the two receivers to operate on different bands or antennas (K4D). The radio contains a Linux computer so all this magic does not require an external computer except for logging or audio input. The rig will be addressable locally or over the internet with no additional software. I saw it operated from an iPad and Android is coming. The iPad screen looked exactly like the front panel, including the panadapter. There are multiple USB ports, an Ethernet port, RS232 and an HDMI port so you can project the front panel, or parts of it, to an external monitor. The panadapter looks awesome on the external monitor and you will be able to point and click to QSY the radio. The prices are targets but I got the impression the final will be very close. The cost is less than a fully loaded K3s. The kit version will be cheaper than factory-assembled and ship several months later to allow time to write the assembly manual. Target for the factory version is November. I suspect the K4 will replace the K3 series as K3s sales are sure to suffer because of product age and competition from the K4. I did not hear any talk about sun-setting the K3s when the K4 comes out. I am sure there are many people who will want to buy the basic K3s and upgrade over time (or not) rather than plunk down $4,000 for the K4. What does this do to the value of a K3 or K3s? I expect there will be some coming on the market. Anyone who buys, or retains, a K3 or K3s will still have one of the finest radios ever made. We are at the point where the difference among the top 5 or so on Sherwood's charts is a decibel or two, almost within the margin of error and certainly beyond the ability of the human ear to discern. So, don't panic. The demand for the K3 series will be strong for many years to come. Keep an eye on the website as more information comes from Watsonville. -- Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Re K4
Something is coming for sure and they are so excited about it, they can't hold it in like they usually do. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/27/2019 9:10 AM, Don Roberts via Elecraft wrote: Watch Eric for hints. Couple years back at Hamcation in Orlando I asked Eric if there was any possibility of a KPA1000 to which came the grin then he replied "why only 1000?" There's your sign. Don, W4CBS Sent from Yahoo Mail on Android __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Bouvet
That is my understanding. The location of the transmitter is what controls. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/23/2019 6:05 PM, Don Wilhelm wrote: Knut, If I recall, the DXCC credit is for the location of the transmitting station, so if you are operating remotely, it would be the location of the station you are remoting into, not your control location. 73, Don W3FPR On 3/23/2019 5:34 PM, ab2tc wrote: Hi Elecrafters, His site asks the question "is this legal?" Presumably, as far as FCC is concerned it is. But if I work Bouvet using this remote, can I really claim DXCC credit for myself for it? It would seem exceptionally unfair. Doesn't ARRL have a rule for as how far you can move from place to place and still claim accumulated DXCC credits? I find this highly troubling. I would never use this. I want my DXCC to be real (well over 200 credits from 100W (K3 of course) and a dipole at a single location). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3S Sub Receiver stopped working
I thought I remembered seeing that in the instructions. If I was wrong, my apologies. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/22/2019 1:40 PM, Nr4c wrote: Since when can there be no empty slots between filters? Sent from my iPhone ...nr4c. bill On Mar 22, 2019, at 1:10 PM, Buck wrote: No blank slots allowed between filters Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/22/2019 11:59 AM, KE8G wrote: Hi All, I need some suggestions on where to start trouble shooting. I looked at Nabble and I have checked all that is listed there and no luck. The sub receiver was working perfectly. I took the radio apart to add some new filters to the sub receiver. It originally had two of them; configured as 2.8Khz, then a 400Hz right next to it, and then 3 blank slots. I removed the 400Hz, the the filters are in the following order; 2.8Khz, blank slot, 1.0Hz, 400Hz, and finally 250Hz in the 5th slot. I used the K3 utility to configure them, with the appropriate settings for each filter. When using the radio, I have both the main and sub receiver on the Main antenna. If I tune to a strong signal on the band, using just the main receiver, I hear on both sides of the headphones. When I engage the sub receiver, I still hear the signal in the left ear, but the right ear goes to just white noise. When the sub receiver is engaged, I can hear sounds in the left ear when pushing any buttons on the radio. I am somewhat stumped, as I was very diligent in disassembly and then re-assembling it. Using most current firmware, 5.66. Please advise. 73 de Jim - KE8G __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3S Sub Receiver stopped working
No blank slots allowed between filters Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/22/2019 11:59 AM, KE8G wrote: Hi All, I need some suggestions on where to start trouble shooting. I looked at Nabble and I have checked all that is listed there and no luck. The sub receiver was working perfectly. I took the radio apart to add some new filters to the sub receiver. It originally had two of them; configured as 2.8Khz, then a 400Hz right next to it, and then 3 blank slots. I removed the 400Hz, the the filters are in the following order; 2.8Khz, blank slot, 1.0Hz, 400Hz, and finally 250Hz in the 5th slot. I used the K3 utility to configure them, with the appropriate settings for each filter. When using the radio, I have both the main and sub receiver on the Main antenna. If I tune to a strong signal on the band, using just the main receiver, I hear on both sides of the headphones. When I engage the sub receiver, I still hear the signal in the left ear, but the right ear goes to just white noise. When the sub receiver is engaged, I can hear sounds in the left ear when pushing any buttons on the radio. I am somewhat stumped, as I was very diligent in disassembly and then re-assembling it. Using most current firmware, 5.66. Please advise. 73 de Jim - KE8G __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Mic Noise
The mics work. My problem was a burst of noise when the rig went into transmit. It appears re-seating the USB cable in the back of the radio has cured the problem. It did not appear to be lose. And the noise would appear even if I was using the VOX or PTT switch or the internal DVR. In other words, not using the USB to trigger the radio. There's one to put in the books. I am sure I won't be the only person to run into this and I still can't explain it. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/17/2019 12:22 PM, Don Wilhelm wrote: Buck, It sounds like that noise is coming from whatever computer software application you are using. You mentioned N1MM. When you unplug the USB cable, whatever software you are using loses communications with the radio. When you plug it back in, that program is not attempting to re-establish communications. What applications do you have active on your computer? I again suggest you get the microphone to work first - unplug everything from the K3 except the microphone, the power and the antenna connection. There may be something unrelated to the microphone going awry, so eliminate everything except the microphone. When that works, build things back up one at a time until you discover the culprit. 73, Don W3FPR On 3/16/2019 7:13 PM, Buck wrote: I've tried all the combination of mics and mic bias. The noise happens even with the mic gain turned all the way down and the rig in TEST mode. It happens when N1MM is not running. It happens using the internal DVR card. It happens with the mic disconnected and using the XMIT button on the front of the radio. - Here is a clue. If I turn on the VOX and reduce the either the RF or AF gain on the receiver, I start getting the noise about once every half second. It sounds like it starts with a "ping." Sounds like something is polling the radio. If I disconnect the USB cable on the back of the radio, no noise. It seemed to be properly seated. Now, if I plug the USB cable back into the radio, no noise. Have I found the culprit? A lose USB cable? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Mic Noise
I've tried all the combination of mics and mic bias. The noise happens even with the mic gain turned all the way down and the rig in TEST mode. It happens when N1MM is not running. It happens using the internal DVR card. It happens with the mic disconnected and using the XMIT button on the front of the radio. - Here is a clue. If I turn on the VOX and reduce the either the RF or AF gain on the receiver, I start getting the noise about once every half second. It sounds like it starts with a "ping." Sounds like something is polling the radio. If I disconnect the USB cable on the back of the radio, no noise. It seemed to be properly seated. Now, if I plug the USB cable back into the radio, no noise. Have I found the culprit? A lose USB cable? k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/16/2019 4:43 PM, Don Wilhelm wrote: Buck, The Heil Goldline mic is a dynamic type, last I heard it has an HC-5 element. It should have bias off. The Elecraft MH4 is an electret type and must have bias set on - use "FP.L bias" It may just be that you have too much mic gain - start with a mid-range setting. The mic preamp can shut down if it receivers too much signal. Make sure there is nothing plugged into the rear mic jack - although MIC SEL should allow you to switch from one to another. If you are not successful, do you have one of the computer type microphones? If so, plug it into the rear mic jack, set MIC SEL to "RP.L bias" and see if you get any audio. Have you made any changes to the Front Panel assembly where you removed the DSP board? If so, there is one connector between the Front Panel board and DSP board that if not mated properly will cause the front panel audio to fail. The TX DLY should have nothing to do with it. The KPA500 becomes active with very little delay. 73, Don W3FPR On 3/16/2019 4:24 PM, Buck wrote: Thanks. I was using a Heil Goldline and also tried an Elecraft MH4 plugged in the front. I get the same noise on FP.L and FP.H Bias is off. And, I still get the noise even when in TEST mode, so there is no RF. I had the Tx Dly on the K3S set to 8. I set it to 15 and the problem went away. Was I hitting the amp too soon? Amp is a KPA500. Now the problem is back, even with the Tx Dly set to 20. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/16/2019 3:41 PM, Don Wilhelm wrote: Buck, Which transceiver and which microphone? If the K3, are you using the front panel mic jack or the jack in the back? How do you have MIC SEL set? 73, Don W3FPR On 3/16/2019 2:57 PM, Buck wrote: I never use a microphone so here I am today trying to run voice in the Va QSO party. When I key the mic, I get a burst of noise that lasts maybe a half second. It does this even if I have the rig in "test" mode ie. no transmit. So, I don't think it is RF. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Mic Noise
Thanks. I was using a Heil Goldline and also tried an Elecraft MH4 plugged in the front. I get the same noise on FP.L and FP.H Bias is off. And, I still get the noise even when in TEST mode, so there is no RF. I had the Tx Dly on the K3S set to 8. I set it to 15 and the problem went away. Was I hitting the amp too soon? Amp is a KPA500. Now the problem is back, even with the Tx Dly set to 20. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/16/2019 3:41 PM, Don Wilhelm wrote: Buck, Which transceiver and which microphone? If the K3, are you using the front panel mic jack or the jack in the back? How do you have MIC SEL set? 73, Don W3FPR On 3/16/2019 2:57 PM, Buck wrote: I never use a microphone so here I am today trying to run voice in the Va QSO party. When I key the mic, I get a burst of noise that lasts maybe a half second. It does this even if I have the rig in "test" mode ie. no transmit. So, I don't think it is RF. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Mic Noise
I never use a microphone so here I am today trying to run voice in the Va QSO party. When I key the mic, I get a burst of noise that lasts maybe a half second. It does this even if I have the rig in "test" mode ie. no transmit. So, I don't think it is RF. I have tried adjusting the mic gain and changing mics - no luck. It does the same thing using VOX except the noise cycles about every half second. Anyone have an idea? -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3/100 Voltage Drop when transmitting
There are two adjustments in my Astron 35A supply. One on the board, adjusts the voltage. Another on the meter, calibrates the meter. I found my output on the terminals was almost a volt low even though the meter read full. I adjusted the pot on the board and then calibrated the meter using two different VOMs. Now, all is well. Trust but verify... Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 2/25/2019 2:44 PM, j...@kk9a.com wrote: I suspect the problem is the power supply and Don has some good suggestions. I am not sure what the actual K3 power requirements are. FWIW, Astron's are rated for ICS, if you really want 25 amps continuous you need a 35 amp linear power supply. John KK9A Don Wilhelm donwilh at embarqmail.com M Jimmy, Astron power supplies have a nasty habit of having loose wiring terminals. They use only pressure to hold the ring terminals on the inside to the terminal bolts. If you can detect even a slight rotation of the bolt when tightening terminals on the outside, remove the covers and tighten those bolts from the inside. The other problem is improperly assembled APP connectors. If you look straight into the end of the connector, if you can see the tip of 2 blades in either side, give the contact blade an extra push from the wire side until the contact blade locks over the locking tab. That is also a cause of APP connectors which tend to pull out with very little tension. 73, Don W3FPR On 2/25/2019 2:12 PM, James Walker wrote: I have a K3 that behaves similarly to what Mike described. I switched from an Astron 25 amp (15 years or more old) power supply to a switching power supply. Problem solved. One would think the problem was my Astron power supply, but I don’t see any such power drop when I use my Astron with other 100 watt rigs. Very strange. Jimmy Walker, WA4ILO Macon, GA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Standard internal Noise
Where did you find "quality" cables? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 1/3/2019 2:49 PM, Jim Brown wrote: I've had the same issue here. 73, Jim K9YC On 1/3/2019 9:56 AM, donov...@starpower.net wrote: I own several P3s and all were supplied with cables that are very susceptible to external RFI because of their very poor quality BNC connectors. I replaced the cables and my P3s have never had an RFI problem again. The Elecraft supplied cables went in the trash bin. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OT: Re: FS: KPA500/KAT500 Combo
I feel every email that asks me to click on a link is a potential bomb. Even email from a trusted source might be spoofed. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 11/9/2018 8:49 PM, Ken G Kopp wrote: I honestly forgot ... I also have Norton 360 that's updated daily. It's likely that much of my lack of SPAM should be credited there. 73 ! K0PP On Fri, Nov 9, 2018, 18:40 W0FK “Deal killer. Ken ke4rg“ Interesting reaction to having a “grant permission” spam filter. It takes just a minute or less to verify the email you’re sending from isn’t junk. I don’t see how a small inconvenience could be a deal breaker. But to each his/her own. My isp screens out most spam, but I had to go to a more robust spam filter after I got on some spammer list that used emails that defeated typical spam screens. I was getting over 300 spam emails a day. I’ve reduced that substantially but still see them flow through on occasion. - St. Louis, MO "The difference between stupidity and genius is that genius has its limits." Albert Einstein -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kengk...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Confessions of grounding
I added two large washers over the post. Makes it easier to sandwich the ground braid between them. Poke a hole in the braid to go over the post. On Fri, Oct 12, 2018, 12:49 PM Leroy Buller wrote: > Ok, I just rebuilt my station and wonder how many of you actually ground > your K3 or your rig? I have the amp and tuner grounded, but I find > grounding the K3 somewhat difficult. Why? Getting my fat ham fingers to > the rear if the rig and tighting up the knurled knob with stiff wire is > quite infuriating. All the connecting cables are in the way and it just > trips my trigger. Then being able to reach over all the doodads and > geegaws to attach ground is a frustration of mine. Many years ago it was > good practice to use solid wire but now i see others using braid. Stiff > wire adds to my frustration. So, for my mental health I would like some > suggestions or ideas how best to deal with this. I know...suck it up. > There has got to be a better way. > > Lee K0WA > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] SVGA for P3 - only looking for ten (10) replies (is that possible?)
I really wish it were possible to implement the features of NaP3 on to the display. Mouse click QSY and internet spots would be a huge benefit. Has anyone done this? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/23/2018 1:43 PM, Fred Jensen wrote: The P3 itself is fine for me. I'm a casual operator and even more casual contester. I know that, if you run in the top DX/Contest circles, it is very useful. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 7/22/2018 7:19 PM, Michael Gillen via Elecraft wrote: Hi guys, hoping this discussion will be limited. However, that said... For those that have experience, is the SVGA option really necessary for the P3? Does it really add a lot? I don’t need the keyboard/ digital features it adds, just asking if a larger (20”+) SVGA display is worth it or is the default smaller display just fine? Is there some scenario where the bigger display really makes the difference or is it that bigger is better rules? Thanks! 73 Michael KK6RWK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 thermal clicks
I noticed the clicks when the amp was new. Advice was to re-seat the toroid transformer. That made no difference but the clicks have gone away. I assume the transformer settled in, if such a thing is possible. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 7/17/2018 5:37 PM, ANDY DURBIN wrote: "I'd appreciate a pointer to any discussions of Z bracket clicks. My search didn't find anything." I looked again and this time found some discussion here - https://forums.qrz.com/index.php?threads/elecraft-kpa500-pinging-during-operating.591521/ and here - http://elecraft.365791.n2.nabble.com/KPA500-Heat-Expansion-Pop-td7075132.html. Reading between the lines I get the impression Elecraft tried to fix the problem, found they had not, so wrote in the manual that it is normal. I'd still like an answer to the question I asked April 21, 2018 - "To what extend does the thermal design require conduction between the PA heat sink and the case metalwork? Would the thermal management be compromised if very thin mylar strips were placed between the heat sink and the case side panel , case rear panel, or Z bracket?". Would someone at Elecraft please respond to this. Thanks and 73, Andy k3wyc __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] factory upgrade to K3(s)
Hey, at least it is not "K3 Pro" or "K3 Mark IIG" k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 6/27/2018 7:12 PM, Fred Jensen wrote: Why not adopt the grammar of the Lao [and Thai] languages which have no plural forms. It would be K3S, two K3S, three K3S, one hundred K3S ... I've always thought K3S was a misteak, K3.1 would have been better ... or not. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/27/2018 3:00 PM, Bob McGraw K4TAX wrote: Would not K3S' be the plural of K3S? Bob, K4TAX Sent from my iPhone On Jun 27, 2018, at 4:44 PM, Ian White wrote: A big reduction in receiver noise floor and a huge improvement in both transmit and receive phase noise. That is far too simplistic. Anyone's personal definition of "the better synthesizer" will depend on what range of frequency offsets is more important for their particular type of operating. For HF CW in particular, phase noise at small frequency offsets is of paramount importance and I wouldn't argue with Don's report of "a huge improvement in both transmit and receive phase noise" - but *only* in that specific context. There are also several other advantages that are relevant to high-performance HF CW that could also justify upgrading to the KSYN3A. At close frequency offsets from the carrier, the KSYN3A does indeed offer a large reduction in phase noise compared with the KSYN3 (which itself was already good). But at wider frequency offsets, that situation reverses. According to the ARRL review [1], at all offsets beyond about 6kHz, the older KSYN3 continues to have a lower noise floor than the newer KSYN3A "upgrade". Performance at wider frequency offsets, 10-100kHz and beyond, is of much greater importance in VHF-UHF contesting. This due to a combination of factors. The strongest signals at VHF-UHF are often much stronger than on HF, due to the use of high-gain beam antennas; and also the weakest signals are *always* much, much weaker due to the lower levels of natural background noise. These two features stretch the requirement for dynamic range on VHF-UHF far beyond those for which most HF transceivers are designed. Anyone transmitting wideband phase noise has a much greater risk of raising the noise floor of many other stations across the whole contesting segment of the VHF or UHF band. Running the numbers reveals that anyone aiming to be a Big Gun in VHF contests has a responsibility to keep their wideband transmitted noise floor below about -130dBc/Hz at frequency offsets of 50kHz and more [2]. This can be a major engineering challenge, and the performance of the transceiver is almost always the most important building block. The KSYN3A just about meets the -130dBc/Hz noise floor target at frequency offsets of 10kHz or more... but according to the ARRL review [1] the older KSYN3 achieves it much more comfortably, with 10-15dB to spare. I have both a K3S and a very early-model K3. The K3S (with the KSYN3A, of course) is used for HF contesting where smaller frequency offsets are important. Meanwhile the old K3 is now used as a transverter driver for 144MHz and above - and for that particular purpose there are very good reasons *not* to replace the original KSYN3. 73 from Ian GM3SEK [1] http://www.arrl.org/files/file/ProductReviewsForDeb/2015/pr112015.pd f [2] https://thersgb.org/members/publications/video_archive.php?id=5703 Sorry, this talk is accessible only to RSGB members, but in a few words... G8DOH runs the numbers to demonstrate that the -130dBc/Hz target for transmitted phase noise is necessary to avoid raising the noise floor of other stations many kilometres away, and also many tens to hundreds of kHz away across the band, whenever their high-gain beams happen to be pointed at each other. That calculation assumes the UK transmitter power limit of 400W PEP output. For the US power limit of 1500W output, keeping all other assumptions the same, the target for transmitted noise floor would need to be better than -135dBc/Hz. The older KSYN3 can still meet that more stringent target but the KSYN3A probably cannot. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: 27 June 2018 14:23 To: hawley, charles j jr; Charlie T Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] factory upgrade to K3(s) Chuck, A big reduction in receiver noise floor and a huge improvement in both transmit and receive phase noise. It is like getting a new transceiver. If you are strictly a casual operator, those qualities may not be important to you, but if you are a DX'er or a contester, or otherwise operate in crowded band condition, those things should be important to you. 73, Don W3FPR On 6/27/2018 9:03 AM, hawley, charles j jr wrote: I decided
Re: [Elecraft] Field Day Report
Only the transmitter has to be on battery power. You can run a computer, air-conditioner and television on a generator or even mains power. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/26/2018 11:57 AM, Peter Wollan wrote: For several years I've been using my K2 to have a QRP station at our club's FD (Rochester MN - K0Z). They used to run kilowatts, but have settled on 100 watts, and aren't willing to use less. So, the QRP station is administratively a separate FD entry (W0LLN), it receives the x5 multiplier, and I get to help set up and take down, to share in the camaraderie, the food, the portapotty, and all the bonus points I feel I can justify -- I get the ARRL message from someone else, I claim the info table and the education, but the elected official never came over to me so I don't think I can claim that. Overall, it works well, and there are always a few people interested in what a simple station looks like. I stick with S&P and paper logging -- I don't have enough battery power to keep a laptop going, and my iPad just won't do it. Next year maybe my CW will be up to running, and I'll get a more satisfying score. But I did get K6IE, who was at least as loud as anyone else -- QRP to QRP, halfway across the country. Peter W0LLN On Tue, Jun 26, 2018 at 12:15 AM, Bill Frantz wrote: The West Valley Amateur Radio Association returned to Mora Hill above Los Altos, Ca for field day. We used K6EI for our main call and W6ZZZ for GOTA. This year we were 14A, QRP, battery and solar panel powered. We had the luxury of lots of panels, so we were able to have a 120V utility for running our computers. We also had enough extra power to run our fans etc., as the temperatures on Saturday were in the high 90s (c36C or so). Note, we are not permitted to operate generators at night, so we don't use them at all. We were in category 14A with 3 CW stations, 3 SSB stations, and 2 digital stations on HF. VHF and UHF filled the rest of the transmitter slots. We had separate triband antennas for CW, SSB, and digital with triband filters to allow use of all three bands at once. We also had separate wire antennas for 40M and 80M. GOTA had its own set of antennas. Getting all this set up took the better part of the daylight on Friday. (Thanks ARRL for the rule change that permits early setup Friday when it is cooler.) We minimize interference between stations on the same band by careful antenna placement, running QRP, using Elecraft and Flex gear, and providing adequate voltage to the radios. I could see our CW stations on the P3 while operating digital, but they were just strong CW stations and caused no interference. Our networked N1MM logging system lets us cheer every time we pass a QSO count milepost, as well as providing lots of backup for the logs. Our GOTA operation was quite popular, with QSOs 150% of last year. Since we are next to a popular trail in the San Antonio Open Space Preserve, we get a lot of bicycle visitors. Some know about ham radio and others have never heard of it. It appears our main operation QSO count was slightly ahead of last year, but I haven't seen a full comparison yet. We got lots of people on the air, with some trying new modes for the first time. I counted 21 people who actually made it into the group photo. Everyone had a good time and went home tired. 73 Bill AE6JV --- Bill Frantz| Re: Computer reliability, performance, and security: 408-356-8506 | The guy who *is* wearing a parachute is *not* the www.pwpconsult.com | first to reach the ground. - Terence Kelly __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to peter.wol...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] P3_SVGA Wireless KB Support?
What Macros are people putting in the P3? I only thought they were helpful if you were operating remotely. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/25/2018 10:52 AM, Dave Cole (NK7Z) wrote: I have not found a way to pre-load macros either, but alas, it is the same, with or without the Genovation. The Genovation just forces you to load a lot of macros at once, so it feels like it is related. I think, no matter how you use the P3, with or without the Genovation, you always need to preload macros by hand. Like yourself, (here comes a request for a new feature Elecraft folks), I would LOVE a way to pretest macros using the P3 utility, then select which memory that macro should live in, then blast the tested macro into the selected memory on the P3. 73s and thanks, Dave NK7Z https://www.nk7z.net On 06/25/2018 07:45 AM, David Box wrote: Still the biggest problem in using the Genovation or P3 macros in general is the clunky keyboard interface that requires hand typing in all the macros directly into the P3. I may have missed something but have not seen any method where you can create macros, test them, then transfer to the P3. Also have not seen anything that allows me to save the macros so I can restore when needed. Above issues may be due to my on neglect of keeping up, so if someone has a way to solve would love to hear it. Dave K5MWR On 6/25/2018 8:48 AM, Dave Cole (NK7Z) wrote: As long as the keyboard appears to be a dumb keyboard it should work... I have a Genovation 64 Key programmable keypad working that fires macros into the SVGA, at the push of a single button. See: https://www.nk7z.net/adding-external-keypad-k3/ I fire all sorts of prebuilt macros into the P3, from reconfiguring the rig for various modes, to setting up complex split operations for DX, to sending my call in CW. I program the Genovation once, (and never touch it again programming wise), then just add my macros to the P3 after that. Once a macro is added, that macro is available at a single button press from then on. Works great in a pileup. I press the "Split Plus" button on the Genovation and the P3 moves the tuned DX signal to the hard left side of the P3 display, sets the span of the P3 to 5 KHz., (showing me the 5 KHz. above the DX signal), turns on VFO B for control of my my transmit on the K3, narrows the K3 filter to 100 Hz., (centered on the DX signal), centers the IF passband on my DX signal, and then shows the transmit cursor on the P3. This lets me find a hole in the pileup, use the VFO B knob on the K3 to move my transmit to that hole in the pileup, and when I hit the ID button it fires off my ID as fast, and as often as I press the button for ID. The entire operation takes about 2 seconds to set up, and start calling... 73s and thanks, Dave NK7Z https://www.nk7z.net On 06/25/2018 05:29 AM, N4OI - Ken wrote: I have a P3 and will be ordering the P3_SVGA. I assume this will NOT support a wireless USB keyboard, but just thought I would confirm before buying one... On the topic, any favorite keyboards I should consider - or avoid? Thanks for your input! 73 -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to do...@suddenlink.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to d...@nk7z.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email
[Elecraft] Field Day Report
The 40 Mtr CW station for the mighty Rappahannock Valley ARC (K4TS 6A VA) achieved a new club record of 1,000 QSOs (not including dupes) by 12:30 Eastern Sunday morning. OPs were K4IA, K4GMH and N2FW. The star of the show was the K3s. It held off the phase noise from other Xcvrs, RFI, tuner-uppers, CQers, QRM, QRN, FakeNews, Russian interference, the Loch Ness monster, Thor's hammer and anything else that came near the wire. Wow, what a rig. Thank you Elecraft. PS - The best shower of the year is the one after Field Day. -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 AF Knob - No End Stops/Detents
If you look at the knob carefully, you will probably discover it is cracked. Request a replacement from Elecraft. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/6/2018 5:21 PM, Scott wrote: It's taken me 8 years to finally "break" something. Well it's not really broken it just doesn't indicate right. The smallest AF knob (the one furthest "out" from the front panel) does not stop at the min and max detent stops. It still adjusts the volume up and down ok but it does not indicate properly. Additionally it will go "all the way around" to adjust the volume. The interior sub receiver AF knob (the biggest and closest to the radio front panel) works fb. Is there any way to fix the smallest AF knob without changing the pot or is that the only fix. Thanks in advance. Scott AD5HS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 in International carry-on luggage?
Take an an ad or manual with you so you can show them what it is. I went through Reagan National, JFK and ElAl, the tightest security in the world, and no one said anything. The rig, coax and antenna wire looked like a bomb to me. It was in carrying-on for the trip over and packed in luggage on the way back. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/25/2018 8:44 AM, Gerry Hull wrote: Hey, Thanks for the quick replies. Not going to worry about it. 73. Gerry W1VE Gerry Hull, W1VE Hancock, NH USA Member: ARRL, YCCC, YCCCN, CW Ops ge...@w1ve.com ph: 1-617-CW-SPARK (find me) On Fri, May 25, 2018 at 8:15 AM, Gerry Hull wrote: Waiting for my KX3 to arrive. I will be doing some international travel in the summer. Just wondering if anyone has carried the KX3 in carry on luggage or a backpack. Do security officials get upset with the battery? 73, Gerry W1VE -- Gerry Hull, W1VE Hancock, NH USA Member: ARRL, YCCC, YCCCN, CW Ops ge...@w1ve.com ph: 1-617-CW-SPARK (find me) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] DSP vs. non-DSP portable transceivers
And that my friends, tells you everything you need to know about the K4. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 5/22/2018 11:55 AM, Wayne Burdick wrote: At the Dayton (yeah, OK, Xenia) Hamvention, just before giving a demo of the KX2, a bystander asked me, “Why would you need DSP in a portable transceiver?” He went on to mention a few currently available rigs he was considering that didn’t have DSP, including one very new one [an “upgraded” legacy model]. I’ll leave the entire list to the reader’s imagination. There are two basic reasons to use DSP: 1. As the core of the transceiver’s architecture, to reduce size and weight and increase flexibility 2. To provide a number of important features that have typically been seen only in desktop radios Explaining #1 is always a bit of a challenge since it dives into theory. Here’s the short version: The receiver in both the KX2 and KX3 uses a high-level quadrature mixer that down-converts the RF signal to baseband (0 kHz) or to a low I.F. (8 kHz). The resulting I and Q signals are fed to a pair of high-performance audio A-to-D converters, and all demodulation is then handled in DSP code. This configuration has immense versatility, reduces component count, and provides very consistent unit-to-unit performance in parameters such as selectivity. To explain #2, I prefer to just dive into the demo. There's a long list of functions that directly benefit those who operate portable, as well as anyone trying to maximize their communications capabilities. Here are the DSP functions that I try to include in demos (given enough time), along with their benefits for the operator: * Multiple Modes The KX2 and KX3 both support SSB, CW, AM, FM, and several data modes, without the need for supplementary hardware. All demodulation is handled by the DSP. And if we add a new mode in the future, it will be available to all KX-line radio owners free of charge with a simple firmware upgrade. * Bandwidth Control The DSP bandwidth can be adjusted from 50 Hz to 4000 Hz (5000 Hz in AM mode). The passband can also be shifted. Rigs without DSP are limited to the passband of their analog filters (including crystal filters). * Stereo Audio Effects and Dual Receive Both rigs demodulate two independent audio channels, allowing for simulated stereo, which reduces listening fatigue. Stereo is also used when DUAL RX is enabled; this allows the operator to listen to one signal in the left ear (VFO A) and another in the right (VFO B). This is essential for use with DX stations operating split, and greatly facilitates hunt ’n’ pounce contest operation where one receiver is parked on a station to be worked, while the other is used to locate the next one. * Adjustable AGC The KX2/KX3 include user-configurable AGC. Threshold, attack, decay, and hold time can all be adjusted. These are parameters that would require dozens of components in a non-DSP design. There’s also a short-duration pulse detector (AGC PLS). When this is turned on--the default--the DSP will seamlessly remove such pulses before they can pin your S-meter and cause a long RX recovery delay. (Rob Sherwood complemented us on this feature, which he found was missing on even high-end desktop transceivers. So, for in-house purposes, we call it “Sherwood mode” :) * Noise Blanking Many non-DSP radios lack noise blanking, or have simple blanking circuitry that can be easily overloaded. The KX-line DSP implements very effective blanking that can take out narrow pulses even at very low settings, and greatly attenuate irregular, high-duty cycle noise sources typical of light dimmers, electric fences, and wideband radar. Blanking can make the difference between a good QSO and not even hearing the other station. * Noise Reduction We often have to deal with stochastic (“white”) noise on the bands. Our DSP-based NR can be adjusted over a wide range to improve intelligibility, especially of speech signals. * Audio Peaking Filter (APF) CW operators often have to copy signals right at or even below the noise floor. At times like this, our APF can dramatically improve copy without adding significant ringing. APF uses a special filter shape for this purpose, with a 30-Hz-wide peak and broad, low-delay skirts. * Text Decode/Encode DSP allows the KX2/KX3 to demodulate and display CW, RTTY, and PSK31/63 signals directly on the LCD (or in the case of the KX3, as several lines of text on the PX3 panadapter). These modes are also directly supported for transmit purposes, using a keyer paddle (a keyboard can also be used, in conjunction with KX2/3 Utility and a notebook computer). * Receive and Transmit EQ 8-band EQ is provided to allow the operator to tailor both receive and transmit audio to meet special hearing requirements, optimize for use with particular microphones, etc. * CWT (CW/data tuning [auto-spot] and mini-spectral display) The DSP sends the MCU inform
Re: [Elecraft] KPA1500 ATU
After you've trained the ATU, switch it to manual mode k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 5/21/2018 11:43 PM, K9MA wrote: After "training" the ATU across part of the band and, I think, setting up the K3 so it should track, I notice some strange behavior. As I tune to a different segment of the band, and stop, there's a delay or a second or so before the ATU relays switch. Other times, even though it's already been tuned to the new frequency, it doesn't switch until transmission starts which, of course, garbles the first character. Am I doing something wrong, or have others notice this behavior? I assumed that once the ATU has been tuned to each band segment, it would switch as soon as the K3 was tuned to a new segment (if necessary), so it would be ready to go when transmission starts. 73, Scott K9MA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] First impressions of KPA1500 #113
If the tuner is like the KAT500, you should switch to Manual operation after you have trained it. Then, it won't be allowed to try re-tuning with every little blip in power. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 5/10/2018 9:39 PM, Les Peters wrote: Arrived May 5th and setup was easy. I’m noticing periodically a momentary higher than normal SWR indication on the SWR bar graph. And I’m still trying to get used to the ATU. I’m experiencing the ATU having to make adjustments sometimes at the start of a transmission after the ATU has already been properly setup for the antenna and band. Is anyone else experiencing anything this or am I doing something wrong? Les, N1SV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 clicks and thermal design
Make sure the transformer is on straight and secured. Mine clicked for a while but has since stopped. On Sat, Apr 21, 2018, 1:35 PM ANDY DURBIN wrote: > I find the "clicks" my KPA500 makes as its temperature changes to be quite > distracting. Part of the problem is that I'm chasing a problem where the > KPA500 changes band spuriously and the thermal clicks sound too much like > the relays re-configuring the LPF. > > > To what extend does the thermal design require conduction between the PA > heat sink and the case metalwork? Would the thermal management be > compromised if very thin mylar strips were placed between the heat sink and > the case side panel , case rear panel, or Z bracket? > > > Any other proven techniques for eliminating the thermal > expansion/contraction clicks? (I know the manual says this is normal so no > need to tell me that). > > > 73, > > Andy k3wyc > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Issue 12 re Astron Power Supply
Well, well. The meter on the front of the Astron 35 says 14.5 volts. My DVM across the output says 13.5. No wonder my front panel reads 13.3 in receive mode. Looks like a calibration is in order. I didn't realize they could get "off." Instructions available on the Internet. You can adjust both the output and the meter. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/17/2018 2:45 PM, David Box wrote: Like all of the "12VDC" rigs made today the IMD on the K3 is sensitive to input voltage. I would recommend you get the input up into the 14.8VDC range as it will reduce the IMD products. I have mine such that on CW key down 100W the internal K3s voltmeter reads 14.5VDC which is basically the reverse protection diode drop from the 14.8VDC input. I am using a TGElectronics battery booster with about 4 in cable from the battery booster to the K3s. Dave K5MWR On 4/17/2018 1:36 PM, Buck wrote: What is the minimum recommended voltage for the K3S? Using the stock Elecraft 5' cable, I drop from 13.3 to 12.7 volts on key down. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/16/2018 4:51 PM, Joe Subich, W4TV wrote: On 2018-04-16 4:26 PM, hawley, charles j jr wrote: So 4 sets of power pole connectors plus 2 fuses. Even if the power pole connectors are assembled perfectly and mated with optimum tension, the resistance in just the four (15 A) power pole connectors in the negative lead is equivalent to nearly 40 feet of #12 copper wire! The voltage at the rig, K3, now drops a volt when putting out 100 Watts. With the equivalent of 50 feet of power cable (4 connectors plus a 10 foot physical cable), I would not be surprised. Assuming 20A in transmit (on 15A power poles!), a 1V drop represents 0.05 Ohms of total circuit losses that's pretty good for 10 feet (x2) of cable plus eight connectors (4 in the + lead, 4 in the - lead) and the switching device (probably a Schotkey diode). However, the 0.05 Ohms in the negative lead is probably ten times higher than in a braided bonding connection directly from the K3 chassis to the power supply chassis. I'm surprised that only 75% went through the ground path - that indicates the ground path has 1/3 as much resistance as the "right" (V- lead) path. 73, ... Joe, W4TV On 2018-04-16 4:26 PM, hawley, charles j jr wrote: About 75% went thru the ground path. The 10 ga to the rig went from Astron to a battery switching device in case of power outage, to rig runner and to rig. So 4 sets of power pole connectors plus 2 fuses. I’m thinking of changing some of that too. The voltage at the rig, K3, now drops a volt when putting out 100 Watts. Chuck Jack KE9UW Sent from my iPhone, cjack On Apr 16, 2018, at 3:14 PM, Wes Stewart wrote: I would hope that "much of the current..." wasn't really much. The direct conductor from the negative terminal of the power supply to the radio should carry the majority of the supply current, Wes N7WS On 4/15/2018 7:38 PM, hawley, charles j jr wrote: This thread prompted me to check out my Astron vs35m. It had a small black wire from -V connected to the bottom of the chassis. Perhaps it could be called a case or cabinet...more importantly, it’s what the green wire from the line cord is connected to. I disconnected the black wire. When it was connected, much of the current that would have passed thru the negative power wire from the power supply to the rig was shunted thru the green power cord wire, the ground buss bar, and other ground connections. Chuck Jack KE9UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://ww
Re: [Elecraft] Issue 12 re Astron Power Supply
What is the minimum recommended voltage for the K3S? Using the stock Elecraft 5' cable, I drop from 13.3 to 12.7 volts on key down. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/16/2018 4:51 PM, Joe Subich, W4TV wrote: On 2018-04-16 4:26 PM, hawley, charles j jr wrote: So 4 sets of power pole connectors plus 2 fuses. Even if the power pole connectors are assembled perfectly and mated with optimum tension, the resistance in just the four (15 A) power pole connectors in the negative lead is equivalent to nearly 40 feet of #12 copper wire! The voltage at the rig, K3, now drops a volt when putting out 100 Watts. With the equivalent of 50 feet of power cable (4 connectors plus a 10 foot physical cable), I would not be surprised. Assuming 20A in transmit (on 15A power poles!), a 1V drop represents 0.05 Ohms of total circuit losses that's pretty good for 10 feet (x2) of cable plus eight connectors (4 in the + lead, 4 in the - lead) and the switching device (probably a Schotkey diode). However, the 0.05 Ohms in the negative lead is probably ten times higher than in a braided bonding connection directly from the K3 chassis to the power supply chassis. I'm surprised that only 75% went through the ground path - that indicates the ground path has 1/3 as much resistance as the "right" (V- lead) path. 73, ... Joe, W4TV On 2018-04-16 4:26 PM, hawley, charles j jr wrote: About 75% went thru the ground path. The 10 ga to the rig went from Astron to a battery switching device in case of power outage, to rig runner and to rig. So 4 sets of power pole connectors plus 2 fuses. I’m thinking of changing some of that too. The voltage at the rig, K3, now drops a volt when putting out 100 Watts. Chuck Jack KE9UW Sent from my iPhone, cjack On Apr 16, 2018, at 3:14 PM, Wes Stewart wrote: I would hope that "much of the current..." wasn't really much. The direct conductor from the negative terminal of the power supply to the radio should carry the majority of the supply current, Wes N7WS On 4/15/2018 7:38 PM, hawley, charles j jr wrote: This thread prompted me to check out my Astron vs35m. It had a small black wire from -V connected to the bottom of the chassis. Perhaps it could be called a case or cabinet...more importantly, it’s what the green wire from the line cord is connected to. I disconnected the black wire. When it was connected, much of the current that would have passed thru the negative power wire from the power supply to the rig was shunted thru the green power cord wire, the ground buss bar, and other ground connections. Chuck Jack KE9UW __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-haw...@illinois.edu __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Astron VS-35M Powwer Supply V-
The Kenwood TS590 runs about a foot of 12 ga connected to the power supply and then the rest of the power line is double 12 ga wires to the radio. Could you reverse that and run double wire until right before the power pole and then a short single wire into the radio? That would reduce the over-all resistance in the power line and still use the single power pole jack on the radio. My power supply is a 35A Astron and I use the stock Elecraft-supplied power line. My voltage drops at least a half volt on key down. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/11/2018 12:02 PM, j...@kk9a.com wrote: My 70amp Astron has 1/4" lugs and they seem to make a secure connection. Do to my longer lead length (power supply on floor) I used 8ga wire. This was difficult to stuff into the K3S sized PowerPole. Even with the shorter leads that I use on contest expeditions along with a switching power supply I found that I need 10ga wire to keep the voltage above 13.5 on TX. I think that larger PowerPoles or studs would have been nicer for those interested in keeping the K3S voltage in the desirable range. Double as Joe suggested would also work if you wanted to run two sets of wires. John KK9A Joe Subich, W4TV wrote: Ohms Law! If the transceiver power supply cable is short and heavy guage with multiple contact pins (or #10 - 1/4" bolted terminals) and #10 or 14" bolted terminals on the power supply, the impedance of the desired path in the power supply cable will be much, much less than the path through control cables (#16-#22 wires with single small pins) and any accessories. Elecraft/Astron come close with their power supply connection. I would appreciate it if the transceiver had bolted connections or at least double up the power poles and move from #12 to #10 cable. Doubling up on the power poles would allow using two (#12) cables further reducing the impedance (and voltage drop) of the desired path. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KPA500 power supply
It depends on what else is on your circuit. If you have a 15 amp circuit and you are already running two lamps, the rig, a computer and monitor, and a bunch of other accessories, you may exceed the circuit rating when you key down. Add up everything that is fed off the same circuit (not just the outlet). Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/29/2018 9:50 AM, AB4IQ wrote: No problems here. I ran out of 110 outlets and had the 230VAC outlet empty and just changed the KPA500 to 230VAC from 120VAC and noticed no differences. Ed.. AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wes Stewart Sent: Thursday, March 29, 2018 7:41 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA500 power supply Not a problem. Wes N7WS On 3/28/2018 11:17 PM, Dennis Haarsager wrote: I am ready to order a KPA500 and wonder if anyone out there has regretted operating one from 115-volt service. Thanks and 73, Dennis, at the moment CT9/N7DH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Power Creep (again)
I have had the same experience running FT8. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 3/13/2018 5:46 PM, ab2tc wrote: Hi all, I have the same problem. Anytime I change something, like band, power or a number of other things, power starts up ridiculously low and creeps *very* slowly up to the 100W mark. Even without changing anything the actual peak power on a transmission can be anywhere between 80 and 120W as indicated by my LP-100A. I am not sure if this is a problem with K3S only. I still have my old K3 but don't use it often enough to know if this is a K3S problem only. I understand Elecraft's policy on not relying on a fast ALC to to control power like most of the big three do (causing IMD), but really, does it have to be this slow? This is on a fairly new K3S which has been back to the factory twice to get the latest upgrades to the transmitter chain. My experience is all SSB with 100W set for the power level. AB2TC - Knut Wes Stewart-2 wrote This is an old subject but with a new wrinkle. Although I'm observing a drift in power on all bands (and modes) after a band or power adjustment, it's ridiculously slow on 17-meters. It's taking 5-10 seconds to stabilize. Any change, such as switching to another band and back again or a minor change in power starts the process over. This is particularly annoying on RTTY AFSK A. (Please no lectures on how Elecraft ALC is different from other radios, I've been running AFSK RTTY for 10 years with K3s.) Using the KPA500 power graph as an expanded proxy for the K3S output power, I'm seeing a change from about 50 watts to 500 watts after an adjustment. On CW the first dit is about 100W. I reran the power calibration and this appeared to fix it initially but the issue returned. This was particularly annoying when I was running a digital mode and saw that I was hitting the amp harder than desired. I tried adjusting power during the transmission and it practically dropped to zero before slowly climbing. Getting a precise level is difficult. Wes N7WS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists+1215531472858-365791@.nabble -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Planning the next filters
Get the 1.8 if you work ssb. Experiment with shifting the pass band for maximum clarity. Youll be amazed just how narrow it can get and still be understandable. On Mar 8, 2018 11:24 AM, "Chuck Chandler" wrote: > Right now I have the stock SSB and a 400 Hz filter in both main and sub > rcvrs. I would like to add some a few at a time. My first priority is to > add a couple to the main receiver, since it is the biggest chore to get > to. > > I plan on a 250 Hz CW filter, but am going back and forth between the 2.1 > and 1.8 kHz filters. I know that narrowing the DSP to 1.8 gives a really > difficult to understand voice signal, while the 2.1 allows in more adjacent > signals. However, the roofing filters may not behave in the same manner. > For example, the 1.8 could be set to turn on at 2.1 to take advantage of > skirt shape. > > I primarily DX, and operate in some contests as well. I know SSB contests > really need a narrow SSB filter. > > Any suggestions on the matter from those who have gone this route before? > > 73 de Chuck, WS1L > > -- > > > === > Chuck Chandler > chandler...@gmail.com > === > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] low audio volume and low s meter readings
Try running the Rx Gain calibration routine in the K3 Utility? k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 2/25/2018 6:12 PM, Gary Slagel via Elecraft wrote: I took my k3 to Belize for ARRL DX CW and pre contest worked a few contacts all of which told me I had a great signal while I could barely hear them. A couple I knew were KW stations and I was concerned I wasn't hearing well. Performance during the contest seemed to confirm that I was being heard better then I was hearing. I had the af gain at max for most of the time. At home I've set up my k3 next to my k3s for comparison testing. The k3 definitely has lower volume and the S meter is reading low. The K3S has an ambient noise level of about s6 on 20M while the K3 S meter shows an ambient noise level of 0.The K3S has a comfortable af gain level of about noon while K3 is comfortable with af gain fully clockwise (both with rf gain at max)Signals seem to be stronger on the K3S. I've been through the 'Receive:Receive signal level too low' section of the troubleshooting guide in the manual and all seems good (didn't try to change config:REF CAL but its value was very close to the default). Would appreciate any wisdom before I resort to sending it in for a tune up. Thanks, Gary KT0A __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] OK, odd question
I find it helpful to tune from a high pitch to a low pitch. That way, I hear the signal coming rather than have it sneak up behind me and tune past the optimum tone. That means, I have to shift the Reverse function depending on whether I am tuning up or down in frequency. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 2/14/2018 11:51 AM, Don Wilhelm wrote: I for one like the tuning direction of the Elecraft rigs in CW (LSB). When I began ham radio using much older receivers, I liked listening with the BFO set to LSB. My perception was "If the pitch goes up, I am tuning to a higher frequency". Those receivers did not have very good frequency resolution and it helped me in tuning correctly. I realize that is my preference, others like it the other way around. It is easy to set the Elecraft gear to CW reverse, and that is "sticky", so you only have to change it once for each band. It is a designer's choice, so I guess Wayne agrees with me because he made LSB CW the default. 73, Don W3FPR On 2/14/2018 11:15 AM, Chuck Chandler wrote: Something that bugs me just a tiny wee bit. So, for years I used a Kenwood or two, then a Yaesu or three, then a Ten-Tec. Much of the time on CW. When I tuned a band, say 20M, I would start at the bottom of the band and tune upwards in frequency. When I did this, as I approached a CW signal it would be higher-pitched. As I tuned it to zero-beat with my 500-Hz CW offset the pitch would drop until it matched my 500 Hz spot. If I tuned too far, the pitch would drop below 500, then drop off the scale as I tuned past it. Similar in fashion to tuning a USB signal. My Elecraft tunes similar to one other rig I have owned, an iCom 706 MkIIG. As I tune up the band I first hear a low-pitched CW signal, then it centers, then it gets higher in pitch. Similar to tuning an LSB signal. This doesn't make a difference in usability, I guess it's due to the receiver architecture. And, yeah, I can go to "CW-R" and it works the way all those other radios did. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3s Low sub receiver volume
Run the RF gain routine in the K3 utility on the sub receiver k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 2/8/2018 1:26 AM, Scott wrote: You may want to check that NR is the same (on or off) for both receivers. In my experience you may have NR off for the main and NR on for the sub. That will give you a "lower volume" for the sub. Also, check the attenuater is the same for both receivers too. Scott AD5HS On 2/7/2018 9:32 PM, Lawrence obrowski wrote: There have been a few posts on this subject, but none had answers. Both my main and sub receiver are on the same antenna. The audio volume from the sub is much lower. The AF for the main is…… let’s say at 9 o’clock….. to get equal volume level from the sum… Sub AF has to be at 3-4 o’clock. RF on both are the same. Any suggestions? Is this normal? Larry W0LRF Lawrence Obrowski, C.P.E.A. Redstone Engineered Home Systems, Inc. 303 588 7233 www.redstonehomekits.com This communication (including any attachments) may contain privileged or confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this communication and/or shred the materials and any attachments and are hereby notified that any disclosure, copying, or distribution of this communication, or the taking of any action based on it, is strictly prohibited. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to netbs...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Rev B1 K3 Manuals
I have some original manuals now surplus to my needs. These are vintage, first edition, that came with my K3 #101. Anyone want them? $10 by PayPal to cover S&H and they can be yours. K3 Assembly Rev B1, October 28, 2007 K3 Owner's Manual Rev B1, October 24, 2007 KRX3 Subreceiver Installation and Operation Rev E, July 6, 2010 KXV3 Interface Installation Rev B, November 5, 2007 -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3s - KPA500
Someone please help me out because I can't find the answer. K3s and KPA500 - I know there is a setting so the K3 will know the amp is in OPER state and automatically reduce the drive to 25 or so watts. Then when you put the amp in STBY of OFF, the K3 will go to 100 watts. My Amp and K3 are talking to each other for band changes etc but I can't get the power to automatically reduce as described. What am I missing? Point me to the page in the manual -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 extra cable
Belay my previous. I got ahead of myself. -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 S Extra cable?
New K3S build Installing SubRx No 2 meter module No Rear Panel Aux RF connector I have an extra 5 inch TMP cable. Is that correct? -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] PTT switch for K3
Tattoo parlor foot pedals are rugged and cheap. I had to swap out for a longer cord but the switch itself is rugged and not too hard to press. https://www.amazon.com/Style-Tattoo-Pedal-Degree-Switch/dp/B077WCXW7Z/ref=sr_1_3_sspa?ie=UTF8&qid=1515385276&sr=8-3-spons&keywords=tattoo+switch&psc=1 k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 1/7/2018 11:03 PM, Josh wrote: I've had a Boss FS-5U for many years. Intended for various music applications, sustain for digital piano, triggering sounds, etc. they're very durable and about $29. The chassis is an aluminum extrusion which is keyed so you can attach multiple together. https://www.sweetwater.com/store/detail/FS5U 73, Josh W6XU Sent from my mobile device On Jan 7, 2018, at 9:57 AM, Dauer, Edward wrote: I plan to try the SSB QSO party next weekend, and have the adapter for the K3 and a Heil headset – but I need a remote PTT switch with a ¼ inch mono plug on one end and a pushbutton switch at the other. All I have been able to find online are nurse call buttons – which I suppose would work but the big red cross on the button is off-putting, and because they are made for use in a hospital environment they are expensive. Anyone suggest a source? Thanks, as always, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to j...@voodoolab.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3/100 for sale
I am thinking about upgrading to a K3S for no particular reason since the K3 is as close to perfect as one could want. I wonder what the interest might be in my K3/100. It is a prestige serial number 101, ordered sight unseen the day the rig was announced. It was back to the mother ship in 2013 for a full upgrade to present specs. The rig is in excellent condition, no smoke, no dings, no issues. Used every day and got me on Honor Roll. You're next. Includes: sub receiver antenna tuner KXV3 transverter interface with output for a panadapter and RX antenna Power cable Kenwood handheld microphone Fred Cady and Elecraft Manuals I am looking for around $2,000.What say you? -- Buck, k4ia EasyWayHamBooks.com License Manuals: Technician Class General Class Extra Class Operarting Manuals: How to Chase, Work & Confirm DX How to Get on HF All The Easy Way -- k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Lulu 40% off
Lulu is running 40% off until Nov 30. Use code CYBER40 to pick up your favorite Fred Cady books. -- Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Subreceiver low audio
I wish I knew "why" so I could fix it permanently. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 11/26/2017 1:09 PM, Brian F. Wruble wrote: That seems to have worked. Thanks. On Sun, Nov 26, 2017 at 1:04 PM Buck <mailto:radiok...@gmail.com>> wrote: I have a similar problem. The gain in the sub-receiver will be low. If I rotate the RF gain control to max, the audio will come back and I can then adjust the RF gain back down. It is almost as if I am kick-starting it. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 11/26/2017 12:41 PM, Brian F. Wruble wrote: > I think this may be an intermittent, but the volume of my sub-receiver is > much below that of the main receiver. I have things set up so I can rotate > the "sub" knob to move audio from main (left headphone) to sub (right > headphone.) When I move to the sub, I lose most of the audio gain. > > Any ideas? > > 73 de Brian W3BW > > *Brian F. Wruble, C.F.A. > The Conch Republic > "We seceded where others failed." > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok...@gmail.com <mailto:radiok...@gmail.com> > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net <mailto:Elecraft@mailman.qth.net> This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to bwru...@gmail.com <mailto:bwru...@gmail.com> -- *Brian F. Wruble, C.F.A. The Conch Republic "We seceded where others failed." __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Subreceiver low audio
I have a similar problem. The gain in the sub-receiver will be low. If I rotate the RF gain control to max, the audio will come back and I can then adjust the RF gain back down. It is almost as if I am kick-starting it. k4ia, Buck K3# 101 Honor Roll 8B DXCC EasyWayHamBooks.com On 11/26/2017 12:41 PM, Brian F. Wruble wrote: I think this may be an intermittent, but the volume of my sub-receiver is much below that of the main receiver. I have things set up so I can rotate the "sub" knob to move audio from main (left headphone) to sub (right headphone.) When I move to the sub, I lose most of the audio gain. Any ideas? 73 de Brian W3BW *Brian F. Wruble, C.F.A. The Conch Republic "We seceded where others failed." __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
