[Elecraft] Looking for K3/0 Mini and/or RRC

A local OM here in Florida is looking for a K3/0 Mini and RemoteRig RRC (control unit only!). If you have either a complete set (K3/0 Mini + RRK0CBL + RRC/control), or part of a set (e.g. only RRC/control or K3/0 Mini), please contact me off list. The OM is not on this reflector, so I will

[Elecraft] Elecraft CW Net Report

Good Evening,    Conditions for both nets were fairly good.  Some QSB but clear signals nonetheless.   On 14050.75 kHz at 2200z: K6XK - Roy - IA W0CZ - Ken - ND AB9V - Mike - IN K4TO - Dave - KY K6CN - Harv - CA   On 7047 kHz at z: W6JHB - Jim - CA W0CZ - Ken - ND K0DTJ - Brian

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

It doesn't sound like you have a clue how WELL they work, though, relative to not using one at all or using one that has verified specs.  Lots of stuff "works" but doesn't work as well as it should.  Personally, I don't see the merit in preferring not to know, and it's a good thing for the

Re: [Elecraft] Noise-cancelling Headphones Redux

Darn, I had to try... I have an AL-1306, nice Amp, but not I suspect as nice as a KPA-500, or 1500... 73s and thanks, Dave (NK7Z/NNR0DC) https://www.nk7z.net ARRL Technical Specialist ARRL Volunteer Examiner ARRL OOC for Oregon On 12/9/18 7:30 PM, eric norris wrote: Dear Dave: I asked my

Re: [Elecraft] Noise-cancelling Headphones Redux

I don't care WHO ya are, that stuff's funny... ...LORD, I apologize, and be with the orphans down there in New Guinea, Amen. On Sun, Dec 9, 2018 at 10:33 PM eric norris via Elecraft < elecraft@mailman.qth.net> wrote: > Dear Dave: > I asked my KPA1500 if she wanted to be your KPA1500. >

[Elecraft] Noise-cancelling Headphones Redux

Dear Dave: I asked my KPA1500 if she wanted to be your KPA1500.   There was a slight shudder from her front cloven hooves.  She went to FAN 5, wailing like a banshee, and all the LEDs flashed "NO NO NO" in Morse--at 15wpm so she was sure even I could copy. "It's OK, baby!," I screamed above her

Re: [Elecraft] KX3 has died

That is the procedure for forcing a firmware load on page 25 of the manual. ftp://ftp.elecraft.com/KX3/Manuals%20Downloads/E740163%20KX3%20Owner%27s%20man%20Rev%20C5.pdf wunder K6WRU Walter Underwood

Re: [Elecraft] KX3 has died

Did you unplug the cable, reboot the Mac, and then plug the radio cable back in? Then start Utility again. I also use a Mac, and I’ve had to do that (rarely) to convince the Mac to see the radio. You can see it’s status if you do a System Report .. Grant NQ5T K3 #2091 KX3 #8342 > On Dec

Re: [Elecraft] KX3 has died

If you have batteries in the KX3. Remove one so it has no battery power. Reboot the Mac . Some time when an operation using the usb/serial ports hangs, the machine does not release the port. Rebooting the pc/Mac should release everything and you can try again. Did you use check Elecraft

Re: [Elecraft] KX3 has died

I use a Mac, too. If the cable failed during a download, the firmware could be corrupted. I would try forcing the firmware load as described in the manual. I could be wrong, but this smells like a problem somewhere between the KX3 Utility and the data port on the KX3. wunder K6WRU Walter

Re: [Elecraft] KX3 has died

Oh -- one other thing I update with the KX3 utility on the MAC. To operate with N1MM I run Windows on the MAC, simultaneously, using the Parallels software. I have done this for more than four years using other radios, but the KX3 for just the past four years. The MAC runs Windows 7/64 and

Re: [Elecraft] KX3 has died

OK -- time for a confession. I'm updating using a MAC. I don't think that has anything to do with the problem. It has worked perfectly for four years. Doesn't say that something couldn't have died. But the MCU LD and flashing Tx LED on the KX3 says there is a firmware error and I don't think

Re: [Elecraft] KX3 has died

It might be the KXUSB. Try different a USB hub on the computer if you have a choice, or another computer if available. Sometimes windows updates change the COM port number, try the steps in Kx3 utility help for finding the right COM port. It might have been a while since you last used the

Re: [Elecraft] KX3 has died

That seems like a bad cable or the PC is not talking to the right port. You might also want to look at the section “Forcing a Firmware Download” on page 25 of the KX3 manual. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 9, 2018, at 6:52 PM, Dave

Re: [Elecraft] KX3 has died

It is not looking good, folks. The RS232 adapter which drives the KX3 is not flashing any more as it usually does. The KX3 Utility returns "KX3 not responding" when I test the link. All cables are properly connected. It's been working perfectly until earlier this evening. I think it is due

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

On 12/9/2018 5:15 PM, Bob McGraw K4TAX wrote: I don't know a darn thing about them other than...they work. Define "they work." :) They don't blow up? You get signal through them to the antenna? They reduce common mode current? They reduce RX noise? You make QSOs with them in line?

Re: [Elecraft] AM operation of the K line

It’s not the best idea to use RF filtering to limit audio bandwidth. Sent from my iPhone > On Dec 9, 2018, at 17:43, Grant Youngman wrote: > > I don’t think the AM transmit bandwidth relies on the filter to set its > limits. Even with the 13KHz filter, bandwidth is limited by the DSP. The

Re: [Elecraft] AM Filters for sale

I have two Elecraft KFL3A-6K filters for sale for $100 each, including shipping. The filters are new and in original unopened packaging as delivered by Elecraft. I also have a working PR6 available for $55 shipped conus. 73//k5mm/ron Sent from my iPad

Re: [Elecraft] AM operation of the K line

I don’t think the AM transmit bandwidth relies on the filter to set its limits. Even with the 13KHz filter, bandwidth is limited by the DSP. The option to use the 13KHz filter was, as I recall, a change made by Elecraft quite some time ago. While there are many opinions, there is no

Re: [Elecraft] KX3 has died

I’m sure you have checked, but I would open it up and make sure the ribbon cables are fully seated. Then I’d check the cables to the PC. Probably restart the PC, too. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Dec 9, 2018, at 4:58 PM, Dave Sublette

Re: [Elecraft] AM operation of the K line

Yes true, however I don't suggest using the 13 kHz filter for AM transmit in view of transmit bandwidth considerations.    The 6 kHz filter is more appropriate and thus does limit the transmit bandwidth to the required limits of the regulations.  97.101(a) 73 Bob, K4TAX On 12/9/2018 7:15

[Elecraft] Less Than Perfect Antennas [was Flumoxed]

I'm the one that made the recommendations.    Other than the two Balun Designs units and the #8232 units from The Wireman being used with my station..I don't know a darn thing about them other than...they work.   I'm not using a 1115T balun.   Measuring the baluns and putting

Re: [Elecraft] AM operation of the K line

Or the 13 kHz filter. Both the 6 and 13 kHz filters can be used for AM. 73, Mark, WB9CIF -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Bob McGraw K4TAX Sent: Monday, December 10, 2018 01:09 To: elecraft@mailman.qth.net Subject: Re: [Elecraft] AM operation of

Re: [Elecraft] AM operation of the K line

Sure, works great.  As configured for SSB switching to AM mode runs about 125 watts of carrier from the KPA500.   No different than operating SSB, just switch the K3S to AM.   Must have the 6 kHz filter installed. 73 Bob, K4TAX On 12/9/2018 4:03 PM, Michael Blake via Elecraft wrote:

Re: [Elecraft] KX3 has died

When I bring up the KX3 utility, there is no tab labeled Help or Troubleshooting or MCU. I now get a "KX3 is not responding" message. Dave On Sun, Dec 9, 2018 at 6:57 PM wrote: > I'd recommend the steps described in KX3 Utility Help, Troubleshooting, MCU > Boot Loader. > > 73 & Good Luck! >

Re: [Elecraft] OT: G5RV antenna

Made me laugh. I guess Reg had other designs :) Martin, HS0ZED On 09/12/2018 23:44, CUTTER DAVID via Elecraft wrote: Sorry, I said Reg, should have said Louis David G3UNA On 09 December 2018 at 16:30 CUTTER DAVID via Elecraft wrote: In addition, Reg was designing in the era of valve

Re: [Elecraft] KX3 has died

So that's what happened.  You were weak, then strong, then gone. But I logged you and you cannot wiggle out of that.    73,   Kevin.  KD5ONS - On 12/9/18 3:03 PM, Dave Sublette wrote: I believe my KX3 has died in the past 30 minutes. It was operating with N1MM prior to that. I went to

Re: [Elecraft] OT: G5RV antenna

I kinda like my 160M coax fed half wave dipole. I can get something out of it on all bands with the K3 tuner, although 80M is very marginal. I have a couple of FT8 QSOs with Quebec on 6M using it, although the azimuth pattern looks like a porcupine. However, for most purposes, my 8 band

[Elecraft] KX3 has died

I believe my KX3 has died in the past 30 minutes. It was operating with N1MM prior to that. I went to the support page at Elecraft.com. I downloaded the latest KX3 Utility. I started the Firmware upgrade process. Initially the message said my KX3 was missing some files and to download the

[Elecraft] AM operation of the K line

Anyone have any experiences or suggestions for using the K3s, KPA500 and KAT500 on 80 meter AM? 73 - Mike - K9JRI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] OT: G5RV antenna

I experimented with a G5RV. I did not have worth while results. A simple dipole with a quality current balun easily outperformed it. I also tried the "Mystery Antenna" - a joke. Measurements were down to a millimeter. It was up for an hour then was scrapped. I did have "acceptable" results

[Elecraft] 6M Meteor scatter

In 2005 I worked MS on 6 Meter and had a blast.This morning thought I would give it a try with low powerK3 @ 70 watts with 5el yagi made 4 QSO's Thanks 73 all Ken K5DNL __ Elecraft mailing list Home:

Re: [Elecraft] Noise-cancelling headphones mystery

I find my RS60 to be comfortable, but sometimes wish they had a cooling system. 73, Scott K9MA -- Scott Ellington. K9MA --- via iPhone > On Dec 9, 2018, at 12:34 PM, Grant Youngman wrote: > > I find the RS60 very comfortable for long periods. I know others who do, and > others

Re: [Elecraft] KPA500 - No RF Amplification in Operate on 20M (WU6R - Mark)

I trust you have the configuration set as displayed on page 5, Figure 1 of the KAT500 manual.  And that you have the K3S configured so as to have the VFO tracking set to ON.  See page 60 of the K3S manual under KAT3.   Select 1 to set to KAT500Y. I would also suggest that in AUTO mode you

Re: [Elecraft] OT: G5RV antenna

From my experience, more folks should pay attention to the antenna and balun work done by DJ0IP.    They would likely have better performing antennas.  His work is proven on antennas and not text book or computer models, but indeed he provides real world results. 73 Bob, K4TAX On 12/9/2018

[Elecraft] Elecraft SSB Net for December 9, 2018

Eric, WB9JNZ, our normal able bodied net control station was AWOL this week. Rumor has it he was off flying his RC aircraft. Without his guidance we somehow managed to stumble through the Sunday morning Elecraft SSB net. With relay the help from Steve WM6P, Brian K1NW, Phil NS7P, and Roger

Re: [Elecraft] Noise-cancelling headphones mystery

I find the RS60 very comfortable for long periods. I know others who do, and others that don’t. I have adjusted mine for ME. Which could lead someone else to find my specific headset uncomfortable (too tight, too loose) for THEM. You’re certainly right that the comfort of any headset is a

Re: [Elecraft] Noise-cancelling headphones mystery

On 12/9/2018 8:40 AM, CUTTER DAVID via Elecraft wrote: Noise cancelling that I've come across is limited to low/medium frequencies. Yes. Others have correctly identified the reason, but I'll go into a bit of detail for clarity. Noise cancellation works by amplifying a tiny mic on the outside

[Elecraft] Noise Cancelling head phones

*/NCT PA3500 looking for a new home .. I have an excellent NCT proACTIVE PA3500 Active Noise Reduction head phone each ear has large over the ear cover with Speaker and a Mic inside. The NCT Active noise canceling is powered by a 3.6 volt Nickel Cadmium battery. Two battery's with charger,

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

Robert: Yes, most of the radiation from a conductor originates in the high current section(s) of the conductor, and for a half-wave dipole, that's the center, low impedance part.  The sag will lower the center, ergo the "gain" will decrease.  Whether or not it's enough to be noticeable is

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

I wonder if anyone using or recommending products like this have ever measured them.  They are not easy to measure.  You can't measure them accurately with a single-port antenna analyzer. N6KT, a member of our contest club is building a station in the Caribbean and asked me to measure a Balun

[Elecraft] KPA500 - No RF Amplification in Operate on 20M (WU6R - Mark)

I was operating on 40M today with my ~2 month old KPA500/KAT500 combo and as the 40M band faded, I switched over to 20M.  Operating the KPA500 in "Operate" mode and the KAT500 in "Auto" with no KPA or KAT faults (confirmed by front panels and KPA500/KAT500 utilities), with 15w dialed in at the

Re: [Elecraft] Noise-cancelling headphones mystery

See if you can borrow a hi quality aviation noise cancelling headset to try out. I have the now discontinued Sennheiser S1’s which work extremely well in many situations including with a single engine open cockpit aircraft, riding mowers, tractors, field day, etc. They have the added nicety of

Re: [Elecraft] K3 Fan Control Command?

The K3 gets warm (very warm actually) just sitting there without xmitting, hi.  Especially the right side closer to the front.  That is just normal.  That was in a post many months ago. BillK3WJV On Sunday, December 9, 2018, 6:51:38 AM EST, eric norris via Elecraft wrote: Has there

Re: [Elecraft] Installing KBPF3MDKT MOD FOR LOW FREQ CUTOFF

That's a good reason! Fred might state this somewhere in his manual. I may have missed it, I just received it and was browsing thru having already done everything except the LPF since I do not have the new synths.. Thank you. Chuck Hawley c-haw...@illinois.edu Amateur Radio, KE9UW aka

Re: [Elecraft] Installing KBPF3MDKT MOD FOR LOW FREQ CUTOFF

The KBPF3A extends the low frequency that the bandpass filter can go. However, the K3 without the new synthesizers cannot tune that low. So if you want to get to the low frequency bands, you need both. You certainly can put the mod kit on the KBPF3, but you cannot take advantage of the

Re: [Elecraft] Noise-cancelling headphones mystery

I fully agree with your comment on the Radiosport. Great headphones, virtually noise free, and on a price par with the better noise cancelling Bose/etc. Of course, when I have mine on, my wife has to kick the chair or slap my head to get my attention. Which may not be all bad? :-) Grant

[Elecraft] Elecraft CW Net Announcement

Thanks Kevin and others who responded to my question about the SSB net. 73, Guy WB7SZI Sent from my iPhone __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post:

Re: [Elecraft] Noise-cancelling headphones mystery

Noise cancelling headphones rely on the distance between microphone and ear being a small fraction of the audio wavelength. At high frequencies, that will be impossible to achieve, and, even if you put in a compensating delay, the path to the ear is going to depend on the direction of the

[Elecraft] Installing KBPF3MDKT MOD FOR LOW FREQ CUTOFF

The Elecraft site states the new Synthesizer KSYN3A is required to modify the original KBPF3 to KBPF3A specifications. However, Fred Cady's book, "Upgrading the Elecraft K3 with K3s Components" does not make this requirement for the KBPF3 to 3A modification. Why does Elecraft require the KSYN3A

Re: [Elecraft] External Display Freezes after Delay

Terry, Since you built the P3 you should have no fear of going inside it. Check all the connections for the SVGA option and make certain the cables are dressed as indicated in the manual and the connectors fully seated. 73, Don W3FPR On 12/9/2018 9:54 AM, brenntl wrote: I have a nuisance

Re: [Elecraft] OT: G5RV antenna

Sorry, I said Reg, should have said Louis David G3UNA > On 09 December 2018 at 16:30 CUTTER DAVID via Elecraft > wrote: > > > In addition, Reg was designing in the era of valve output transmitters with > built-in pi-tank matching system, so, it was possible to match on different > bands.

Re: [Elecraft] Noise-cancelling headphones mystery

Noise cancelling that I've come across is limited to low/medium frequencies. If your hearing takes you higher, the noise-cancelling has finished by then. This is probably not the ability of the sensing mic but the circuitry and/or room acoustics, echo, etc. I'm a little out of date on the

Re: [Elecraft] OT: G5RV antenna

In addition, Reg was designing in the era of valve output transmitters with built-in pi-tank matching system, so, it was possible to match on different bands. I'm sure mine worked across 80 to 10m in those days. For 80 to 10m these days I use a off-centre-fed dipole with hybrid

Re: [Elecraft] missing part ?????

Bill, Download the K3 schematics - they are searchable .pdf documents. 73, Don W3FPR On 12/9/2018 10:58 AM, Bill Steffey wrote: horror of horrors Just updated the K3 firmware. Had to pull out the k3 from it hole in the cabinet. All went ok after I had to do a forced load. Seems to be

Re: [Elecraft] Noise-cancelling headphones mystery

No noise canceling headphones will be effective against the high frequency noise of the KPA1500 fans. However, passive headphones can be very effective. The Radiosport makes the fans nearly inaudible. Not cheap, but neither is the KPA1500. 73, Scott K9MA -- Scott Ellington. K9MA

Re: [Elecraft] Elecraft CW Net Announcement

Yes the Elecraft SSB net is 14.3035 at 1800 Z on Sunday. NCS is in Chicago. If you don’t copy him, stay around because there are relay stations in Caif. Oregon, Colorado , Fla. east cost, N. Texas and I forgot some. Kurt W7QHD > On Dec 8, 2018, at 9:47 PM, kevinr wrote: > > Good

[Elecraft] missing part ?????

horror of horrors Just updated the K3 firmware. Had to pull out the k3 from it hole in the cabinet. All went ok after I had to do a forced load. Seems to be fine. BUT ON THE TABLE IS A SMD PART , the top, including coil of a  4.7uh smd inductor. Something is missing that part.

Re: [Elecraft] Noise-cancelling headphones mystery

As a guess, I would say the response of the mic used to derive the phase canceling audio does not adequately cover the audio noise spectrum of the 1500 puts out... Thus it can't phase cancel very well... That or your 1500 is filled with bad magic because it is supposed to be my KPA-1500 and

Re: [Elecraft] External Display Freezes after Delay

Do you suppose it is RF related? Have you tried very low output power and/or a dummy load? Possibly a bad coax connector? 73, -John NI0K brenntl wrote on 12/9/2018 8:54 AM: I have a nuisance issue with the P3 and an external display. When I apply 13.8VDC to the K3 and P3 simultaneously (P3

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

I will soon publish a new Choke Cookbook for chokes wound on a single #31 2.4-in o.d. core with RG400, a #12 teflon pair, and a #12 THHN pair. I am no longer recommending chokes wound with RG8/11/213 size coax Dang, I'm going to have a TON of spare 2.4" cores left over from my old-style

[Elecraft] External Display Freezes after Delay

I have a nuisance issue with the P3 and an external display. When I apply 13.8VDC to the K3 and P3 simultaneously (P3 POWER button must be pushed to turn on the P3), the external display displays the image first followed by the image on the P3. This all appears to be normal operation. Thirty

[Elecraft] OT: G5RV antenna PLOTS

Here is a nice discussion (link below) on the G5RV ~ Tnx, Jaro OK1CJB including current distribution and radiation plots for various bands Regards, Jan K1ND

Re: [Elecraft] Elecraft Net

Still true. > On Dec 9, 2018, at 7:49 AM, Ian Kahn wrote: > > Good morning. The Elecraft SSB Net used to be every Sunday at 1800 UTC on > 14.303.5. I used to be one of the net controllers. However, it has been a > couple of years since I've gotten on, so it may have changed. > > 73 de, > >

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

Balun Designs, both 1:1 and 4:1 for use with tuners.I have both because I also have a folded dipole that I feed direct. I suggest you give the folks at Balun Designs a call and discuss your exact needs. Take their advice. Also see the DJ0IP site for details on baluns. Just Google DJ0IP.

[Elecraft] Noise-cancelling headphones mystery

I have owned a pair of Heil noise-cancelling headphones for many years.  They worked very well to reduce the noise of my old AL-1200 amplifier, and the 5 fans on my cantankerous man-killer Henry 2002A EME amplifier.  However, they are completely ineffective against the KPA1500.  I bought a pair

Re: [Elecraft] Elecraft Net

Good morning. The Elecraft SSB Net used to be every Sunday at 1800 UTC on 14.303.5. I used to be one of the net controllers. However, it has been a couple of years since I've gotten on, so it may have changed. 73 de, Ian, NV4C On Sun, Dec 9, 2018, 12:43 AM kevinr Hello, > > Yes, there is

Re: [Elecraft] Fwd: Re: K3S K3 new firmware - how it doesnt download?

AdditionIt reads fine from the Utility and when I download it first to my PC.Automatic reading from the website however gives basic file scripting 73 Henk Verzonden vanaf mijn Samsung Galaxy-smartphone. Oorspronkelijk bericht Van: Henk de Vries Datum: 09-12-18 09:55

Re: [Elecraft] Fwd: Re: K3S K3 new firmware - how it doesnt download?

NR4C said well. I maked a mistake. Now after pressing Copy New Files from Elecraft, Check Revisions work well and Send All New Firmware permitted new version 5.66 installation. PA0C is right about Release Note: the file have strange things written, and notes unreadable. Thanks to all for your

[Elecraft] Fwd: Re: K3S K3 new firmware - how it doesnt download?

I downloaded the release note to see all the changes but get nothing readable.This happens on PC, tablet and phone. If anyone can read it please be so kind to forward it. 73 HenkPA0C Verzonden vanaf mijn Samsung Galaxy-smartphone. Oorspronkelijk bericht Van: Grant Youngman

Re: [Elecraft] Less Than Perfect Antennas [was Flumoxed]

Several reasons why this is a bad idea. First, resonant dipoles are a much closer match to 50 or 75 ohm coax than to 300 ohm line. Low dipoles are closer to 50 ohms, higher ones closer to 75 ohms. Second, the MOST important place for a choke is at the feedpoint. The feedline is part of the