[Elecraft] AXE1 assembly problem
I am just getting around to using the AXE1 and find it is impossible to screw the extender into the ax1 base ( and I pushed in as hard as I could while trying to get the threads to connect). It looks to me like a plastic wrapping around the base of the AXE1 sticks out too far preventing the threads from reaching. This plastic extension on the axe1 extends out abt 7mm on one side from the base (this plastic part was cut at an angle, 5mm on one side and 7mm the other.) Should I try and trim this part or send it back to elecraft? Mike Parkes AB7RU __ 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] KX3 for sale
Not using it enough. KX3 KX3 160-6 M Transceiver KXAT3 Internal automatic antenna tuner KXBC3 Internal NiMH Charger/Clock KXFL3 KXFL3 Dual-Passband Roofing Filter KXPD3 KXPD3 Precision Keyer Paddle MH3 MH3 Hand Microphone KXUSBa USB Cable Power Cable Sidekick end panels Cable to hook up to computer Manual Batteries HR6,1.2v/2500mAh Never had any issues with it $1250 USD shipped -73- Frank KG9H __ 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
Folks, we're way over the single topic posting limit here, and the discussion has drifted way off the original topic into transmitter design and other topics. Lets close this thread now in the interest of relieving our readers of email overload. Also, please do not cross post to multiple lists as this makes it impossible to moderate replies from the other list. 73, Eric Moderator, when I can pull away from other duties at Elecraft ;-) 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 arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
I've been in aviation ground comms pretty much my whole working life, now about 43 years, and apart from the odd mobile radio just about every bit of kit runs off regular single phase AC from 100-250 volts 50/60Hz plus DC at nominally 24 volts, these days often specified as 28 volts in line with solid state PA device requirements. Pretty much every GATR or TRACON site that provides a DC supply does so either at -48 volts for the phone line (and voice switching) systems or 24/28 volts for the comms radios often deriving the 24 from the 48 volts supply. I recall some airfield navigations aids, ILS/DME that had a nominal 12 volt backup supply but I think that was only some oddball stuff, certainly all the equipment I have actually worked on has been 24/28 volt. Interestingly Icom makes a vehicle radio for air band use 118-137MHz about 5 watts carrier so around 20 watts pep. This radio is both 13.8 and 28 volts capable. It senses when the supply gets about about 14-15 volt and switches in a buck converter (I guess). Other than small cars and pick-up trucks most airfield vehicles are also 24 volt. I think from a ham shack perspective, going to 24 as opposed to 12 volts should not be a big deal. Two batteries in series instead of one. Charging in parallel or series as you like. In those same comm site systems most of the DC supplies are provided by banks of 2 volt cells all racked together and feeding either a direct DC connection to equipment or to a UPS. Twice the voltage means half the current with the added benefit of half the IxR losses in any given cable. Given the impact of solar energy systems maybe not too long before houses get built with dedicated battery rooms :) So far as amateur radio design goes a lot of the top line, for the day, AC mains powered base station radios have used 24/28 volt final stages, TS930/940/950, IC781, FT1000. I'm sure their modern equivalents do the same. Though it does seem that the AC powered base station radio is much less common these days, I attribute that less to the wishes of the market and more the costs/demands of testing and certification in our more risk averse world. I think it would be a reasonable design goal to have a radio that has low level 10 watt output from on the base unit, with a plug in 100 watt 12 volts powered PA unit or an equally plug in 100 or 200 watt 24 or 48 volt PA, use of which would necessitate a different supply but could likely include on board the down converter for the rest of the radio. I think all of that should be pretty much achievable technically. Not sure if the market would be smart enough to recognise the benefits though. Martin, HS0ZED On 06/11/2019 04:37, lmarion wrote: The FAA still uses 13.6 volt AM around the world, even the Western air defense com is same. The Huge power UPS legacy sytems are part of the same old standard that won't die. leroy ab7ce On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: Perhaps since that is the standard voltage for cars, trucks, RVs and other vehicles. Commercial communication base-station equipment has been standardized at -48 volts(*) for quite a while and actually needs to use a voltage converter for the odd-ball +12 V or 120V AC equipment that has to be run. (*) -48 volts has been the telephone industry standard since Ma Bell was a teen-ager! 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ 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 arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
The FAA still uses 13.6 volt AM around the world, even the Western air defense com is same. The Huge power UPS legacy sytems are part of the same old standard that won't die. leroy ab7ce On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: Perhaps since that is the standard voltage for cars, trucks, RVs and other vehicles. Commercial communication base-station equipment has been standardized at -48 volts(*) for quite a while and actually needs to use a voltage converter for the odd-ball +12 V or 120V AC equipment that has to be run. (*) -48 volts has been the telephone industry standard since Ma Bell was a teen-ager! 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 __ 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
I always used Wilmore supplies to do the various tasks to convert our 48VDC. Also used them on 72VDC equipment and never had one fail. Ed.. AB4IQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil Kane Sent: Tuesday, November 5, 2019 11:19 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [Elecraft-K3] K3S to be discontinued On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: > Perhaps since that is the standard voltage for cars, trucks, RVs and other vehicles. Commercial communication base-station equipment has been standardized at -48 volts(*) for quite a while and actually needs to use a voltage converter for the odd-ball +12 V or 120V AC equipment that has to be run. (*) -48 volts has been the telephone industry standard since Ma Bell was a teen-ager! 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 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 arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
i’ve been a user of 48 volt gear for decades in my day job but it is not what the average consumer can easily access. Sent from my iPad > On Nov 5, 2019, at 12:19 PM, Phil Kane wrote: > > On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: > >> Perhaps since that is the standard voltage for cars, trucks, RVs and other >> vehicles. > > Commercial communication base-station equipment has been standardized at > -48 volts(*) for quite a while and actually needs to use a voltage > converter for the odd-ball +12 V or 120V AC equipment that has to be run. > > (*) -48 volts has been the telephone industry standard since Ma Bell was > a teen-ager! > > 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 w...@w2xj.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 arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
There have been a few amateur transceivers made that ran their solid state finals at higher voltages and then had their own internal supplies. But the industry has decided that the "standard" is still "12V". The rigs with the higher voltage just don't take off and induce sales. On Tue, Nov 5, 2019 at 11:19 AM Phil Kane wrote: > On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: > > > Perhaps since that is the standard voltage for cars, trucks, RVs and > other vehicles. > > Commercial communication base-station equipment has been standardized at > -48 volts(*) for quite a while and actually needs to use a voltage > converter for the odd-ball +12 V or 120V AC equipment that has to be run. > > (*) -48 volts has been the telephone industry standard since Ma Bell was > a teen-ager! > > 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 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 arch...@mail-archive.com
Re: [Elecraft] [Elecraft-K3] K3S to be discontinued
On 11/4/2019 1:24 PM, Rick Bates (WA6NHC) wrote: > Perhaps since that is the standard voltage for cars, trucks, RVs and other > vehicles. Commercial communication base-station equipment has been standardized at -48 volts(*) for quite a while and actually needs to use a voltage converter for the odd-ball +12 V or 120V AC equipment that has to be run. (*) -48 volts has been the telephone industry standard since Ma Bell was a teen-ager! 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 arch...@mail-archive.com
[Elecraft] FS: P3 Panadapter with SVGA and TXMon
P3 with SVGA and TXMon (200W) options. Excellent condition. Includes Fred Cady and Elecraft manuals, cables for K3 and K3S. $750 Shipped Paypal OK. __ 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
the next step would be to get rid of linear amplification. It’s an over 90 year old technique that was originally all but necessary to amplify SSB. New methods employing saturated switching amplification would be much more efficient (90% or more) while having much lower IMD (-80 db or more) and produce a lot less heat all while maintaining 12 volt operation and eliminating the TX D/A converter. Probably some form of RFPWM but there are other options. The wireless data people are all over these technologies as power efficiency in that area is an extreme requirement but because of the frequencies involved this can be a tradeoff against suppressing switching byproducts and require complicated bandpass filters. For HF Ham radio applications only a fairly simple low pass filter would be necessary. A thought for a K4S or K5? Sent from my iPad > On Nov 4, 2019, at 6:21 PM, Wayne Burdick wrote: > > Hi all, > > We've chosen to have the K4 continue to be a field-capable radio, inheriting > the characteristics that have always made the K3/K3S (and the K2 before it) > the preferred rig for FD, DXpeditions, and multi-transmitter stations. Thanks > to a lightweight but rigid internal aluminum frame, the K4 weighs only > slightly more than the K3/K3S, while integrating in a large LCD in a way that > increases width by less than 3 inches. (Unlike on many rigs, our front panel > includes separate optical encoders for VFO A, VFO B, and RIT/XIT.) > > Current drain of the K4 is half that of most competing high-performance > desktop radios, so it can be used with emergency power. At home, use 13.8 to > 14.2 V for lowest IMD. In the field, the K3 (and now, the K4) automatically > scales maximum power output based on supply voltage, and can run down to as > low as 11 V. > > 73, > Wayne > N6KR > > >> On Nov 4, 2019, at 3:07 PM, Buck wrote: >> >> 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 > > > __ > 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...@w2xj.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 arch...@mail-archive.com
[Elecraft] synth board stiffener set K3STFNR
i have one new in the bag ,,, if anyone is still looking . K3STFNR 15+ FGT... BILL n...@arrl.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 arch...@mail-archive.com
Re: [Elecraft] K2/100 Power Measurements
Guy goes into Home Depot to buy some wire. "What size wire?" 'Uh, #14, I think." "How long?" "Uh...a long time. We're building a house." Sorry.Eric KE6US On 11/4/2019 9:05 PM, Jim Brown wrote: On 11/4/2019 8:49 PM, Holger Doerschel wrote: drops at 100 W / 28 MHz to 12.2 V. What size wire? How long? 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 eric.c...@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-K4] K4 CW and keying Rise Time
I said that, to a person who reported that my radio was generating clicks. "I am using K3, I should be perfectly clean," was my reply. My K2 was clicky. I used it Qrp or LP until after I installed the Elecraft modification. Moreover, after curing Omni 6 and ft1000mp of clicks by installing and testing proven modifications, I do know a little bit about detecting key clicks under my nose---compared to a very strong (but clean) signal. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Monday, November 4, 2019, 6:22:43 PM EST, Wayne Burdick wrote: We went to great lengths to create an ideal sigmoidal (raised cosine) rise/fall characteristic for our CW keying envelope. It is set at approximately 5 ms and will not be shortened for any reason. Elecraft rigs don't click. We also ensure that ALC never interferes with the CW keying waveform. During rise and fall, ALC is open-loop, allowing the characteristic curve to be presented to the output stages. The result of all this is the narrowest CW keying bandwidth possible consistent with crisp on-the-air sound. 73, Wayne N6KR > On Nov 4, 2019, at 12:21 PM, Dan Atchison via Groups.Io > wrote: > > I am hoping that the K4, like its predecessor the K3(S), does NOT give a user > the ability to change its CW rise times. > > I believe the K3 is designed for a 5ms rise. Many, if not most, other > manufacturers allow as little as 1ms resulting in CW signals that reach > beyond 1kHz of bandwidth by creating horrible key-clicks. Indeed, their > "default" values can be too short. To what end? Unscrupulous users setting > it so their clicks help keep their run frequency clear? Terrible to think > that but I have heard some station owners admitting same. > > Last weekend's CWSS had many, many horrible key-click stations - some from > notable contesters. I realize that things other than a CW rise time can give > cause to key-clicks (antenna connections, hot-switching, etc.), but newer > radios shouldn't be the culprit - yet they can be because of manufacturer's > oversight (or under-thought). > > I've never heard of a short CW rise time being an advantage other than to > create havoc. There is a happy medium. > > Dan - N3ND > > > _._,_._,_ > Groups.io Links: > You receive all messages sent to this group. > > View/Reply Online (#246) | Reply To Group | Reply To Sender | Mute This Topic > | New Topic > > Your Subscription | Contact Group Owner | Unsubscribe [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 wlba...@bellsouth.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 arch...@mail-archive.com
