Re: [Elecraft] Using K3 to measure noise levels
On 10/12/2013 4:09 PM, Rich - K1HTV wrote: Turn on your K3 and move to an quiet frequency on the band to be used. - Turn TECH mode to 'ON"' (Hold 'Menu' button to get to 'CONFIG' menu) Before beginning this, the AGC must be OFF. That's because the voltmeter is reading the audio voltage. I know this because I first made some completely useless measurements with the AGC on. :) 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
Re: [Elecraft] KX3 2-meter module progress report
For those of us using low noise preamps, they typically lower dynamic range, anyway. I recommend a preamp for working non-FM modes as one is not benefiting from repeaters in high places. The same goes for using the 2m module as IF for higher frequency transverters (i.e microwaves). I will be looking at power and frequency specs. for my applications. I know some eme'rs are anxious to see how it does for use as eme transceiver (especially for portability on eme Dxpeditions). 4-5w will drive my amps with no problem (I am currently using a 3w HT). Hoping I am still on the beta-testing list. 73, Ed - KL7UW Date: Sat, 12 Oct 2013 07:32:22 -0700 From: Wayne Burdick To: "Dave" Cc: Elecraft Reflector , k...@yahoogroups.com Subject: Re: [Elecraft] KX3 2-meter module progress report Hi Dave, The KX3-2M module occupies less than one cubic inch -- that's about 1/15th the space occupied by the K144XV, the 2-m module used in the K3. Given this, we had to make some design tradeoffs. The KX2-2M's sensitivity is nearly as good as the K144XV's, but the latter has higher power output and somewhat greater dynamic range. I think if you were trying to win a VHF contest in a strong-signal environment, you might want heavier weaponry. But after the war, if your side lost and you had to run to the hills with only what you would carry, a 2-pound KX3 with 2 meter capability would be an excellent choice. 73, Wayne N6KR 73, Ed - KL7UW http://www.kl7uw.com dubus...@gmail.com "Kits made by KL7UW" __ 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] Elecraft CW Net Announcement
Good Evening, A busy and chilly week has seen me tossing a lot of wood down hill. Much easier than in the other direction. Propagation has been good too. Please join us tomorrow. 1) Hail signs (first letter or two of the suffix of your call) 2) NCS help (as well as QSP/QNP help) Sunday 2200z (Sunday 3 PM PDT) 14050 kHz Monday 0100z (Sunday 6 PM PDT) 7045 kHz Stay well, Kevin. KD5ONS __ 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] Elecraft SSB net announcement
The weekly Elecraft SSB net will meet tomorrow (10/13/13) at 1800z on 14.3035 MHz. I will be net control from western Oregon. See you there. 73, Phil, NS7P __ 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] Interface and Ham Radio Deluxe
Dale, I like and use a SignaLink USB and like it. However, almost any of the popular interfaces will work. Or, you could just use the mic and headphone connectors on your PC and run cables to the mic and headphone connectors on the KX3. That can work also. 73, Barry K3NDM - Original Message - From: "Dale" To: elecraft@mailman.qth.net Sent: Saturday, October 12, 2013 10:34:45 PM Subject: [Elecraft] Interface and Ham Radio Deluxe G'day all, I am thinking of using my KX3 for digital work and also running it through Ham Radio Deluxe. What is a good interface unit, maybe Digalink or Omnirig? What is the best way to connect to a laptop to use HRD? Suggestions please! -- 73 Dale - VK4DMC __ 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] Interface and Ham Radio Deluxe
G'day all, I am thinking of using my KX3 for digital work and also running it through Ham Radio Deluxe. What is a good interface unit, maybe Digalink or Omnirig? What is the best way to connect to a laptop to use HRD? Suggestions please! -- 73 Dale - VK4DMC __ 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] SDR software for KX3?
I had a lot of trouble until I put a ground-loop isolator between the KX3 and the PC. The grounding at my QTH is a bit less-than-perfect, and I was getting a 60Hz+harmonics buzz by connecting the PC to the KX3. Not saying it is the case with you, but it's just another one of those things. You might try disconnecting the KX3 from your ground and running it off batteries to see if it matters as far as the SDR is concerned... it's easy to rule out a ground loop that way. On 12 October 2013 18:20, Tom wrote: > I think I'll be looking at the cables, I seem to be picking up some 60 hz > on the kx3, fairly low level but this is on the battery so it must be > coming from a connection somewhere. ThTs probably why there's always a log > spur at the center frequently . > I seem to have hdsdr working acceptably except for the spur. I'll also try > rockey. > Thanks for the suggestions > Tom > > > > > Original message > From: WB4JFI > Date: 12/10/2013 20:49 (GMT-05:00) > To: Tom > Cc: Barry LaZar ,elecraft@mailman.qth.net > Subject: Re: [Elecraft] SDR software for KX3? > > Hello Tom. > > I have had success with using several SDR software programs (and sound > cards) with my KX3. It shouldn't be that hard. I've used Rocky, hDSDR, a > few variants of PowersDR, SDRsharp, and a few others, on various Windows > and Apple (iPad, iPhone) computers. > > Most programs have internal adjustments for phase and gain differences, so > you don't need to adjust those with External mixer controls. Try Rocky > first, it's probably the easiest to set up and use. It can also > automatically adjust for your sound card and rig differences. > > If you are having so many problems, be sure to check your cables. I have > had a couple of commercially made cables that were defective, with partial > shorts between the various connections. I had trouble with I/Q balancing > until I found they were bad. > > Good luck. 73, Terry, WB4JFI > Sent from tfox iPad > > > On Oct 12, 2013, at 7:27 PM, Tom wrote: > > > > Hi > > Well I just bought a new outboard sound card and removed all previous > cards. I'm now running an emu2020 and I can adjust the levels between the > channels. I can minimize the images but as soon as you move up or down a > while the images are back. I also have lots of spurious peaks making it > impossible to distinguish between cw and spurs. There is no adjustment in > software for the inputs but I can adjust the levels on the outside. The > images look nowhere like what you see on YouTube. > > Getting pretty frustrated here > > Tom > > > > > > > > > > > > Original message > > From: Barry LaZar > > Date: 12/10/2013 17:28 (GMT-05:00) > > To: elecraft@mailman.qth.net > > Subject: Re: [Elecraft] SDR software for KX3? > > > > Guys, > > The one that really works well is NaP3. It was originally set up > > for the K3, but the latest iteration does a great job on the KX3. I've > > been running with the software for about a year or so, and I now don't > > know how function without it. > > > > > > 73, > __ > 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 > -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. __ 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] SDR software for KX3?
I think I'll be looking at the cables, I seem to be picking up some 60 hz on the kx3, fairly low level but this is on the battery so it must be coming from a connection somewhere. ThTs probably why there's always a log spur at the center frequently . I seem to have hdsdr working acceptably except for the spur. I'll also try rockey. Thanks for the suggestions Tom Original message From: WB4JFI Date: 12/10/2013 20:49 (GMT-05:00) To: Tom Cc: Barry LaZar ,elecraft@mailman.qth.net Subject: Re: [Elecraft] SDR software for KX3? Hello Tom. I have had success with using several SDR software programs (and sound cards) with my KX3. It shouldn't be that hard. I've used Rocky, hDSDR, a few variants of PowersDR, SDRsharp, and a few others, on various Windows and Apple (iPad, iPhone) computers. Most programs have internal adjustments for phase and gain differences, so you don't need to adjust those with External mixer controls. Try Rocky first, it's probably the easiest to set up and use. It can also automatically adjust for your sound card and rig differences. If you are having so many problems, be sure to check your cables. I have had a couple of commercially made cables that were defective, with partial shorts between the various connections. I had trouble with I/Q balancing until I found they were bad. Good luck. 73, Terry, WB4JFI Sent from tfox iPad > On Oct 12, 2013, at 7:27 PM, Tom wrote: > > Hi > Well I just bought a new outboard sound card and removed all previous cards. > I'm now running an emu2020 and I can adjust the levels between the channels. > I can minimize the images but as soon as you move up or down a while the > images are back. I also have lots of spurious peaks making it impossible to > distinguish between cw and spurs. There is no adjustment in software for the > inputs but I can adjust the levels on the outside. The images look nowhere > like what you see on YouTube. > Getting pretty frustrated here > Tom > > > > > > Original message > From: Barry LaZar > Date: 12/10/2013 17:28 (GMT-05:00) > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] SDR software for KX3? > > Guys, > The one that really works well is NaP3. It was originally set up > for the K3, but the latest iteration does a great job on the KX3. I've > been running with the software for about a year or so, and I now don't > know how function without it. > > > 73, __ 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] SDR software for KX3?
Hello Tom. I have had success with using several SDR software programs (and sound cards) with my KX3. It shouldn't be that hard. I've used Rocky, hDSDR, a few variants of PowersDR, SDRsharp, and a few others, on various Windows and Apple (iPad, iPhone) computers. Most programs have internal adjustments for phase and gain differences, so you don't need to adjust those with External mixer controls. Try Rocky first, it's probably the easiest to set up and use. It can also automatically adjust for your sound card and rig differences. If you are having so many problems, be sure to check your cables. I have had a couple of commercially made cables that were defective, with partial shorts between the various connections. I had trouble with I/Q balancing until I found they were bad. Good luck. 73, Terry, WB4JFI Sent from tfox iPad > On Oct 12, 2013, at 7:27 PM, Tom wrote: > > Hi > Well I just bought a new outboard sound card and removed all previous cards. > I'm now running an emu2020 and I can adjust the levels between the channels. > I can minimize the images but as soon as you move up or down a while the > images are back. I also have lots of spurious peaks making it impossible to > distinguish between cw and spurs. There is no adjustment in software for the > inputs but I can adjust the levels on the outside. The images look nowhere > like what you see on YouTube. > Getting pretty frustrated here > Tom > > > > > > Original message > From: Barry LaZar > Date: 12/10/2013 17:28 (GMT-05:00) > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] SDR software for KX3? > > Guys, > The one that really works well is NaP3. It was originally set up > for the K3, but the latest iteration does a great job on the KX3. I've > been running with the software for about a year or so, and I now don't > know how function without it. > > > 73, > Barry > K3NDM > >> On 10/12/2013 5:04 PM, Jerry Flanders wrote: >> I saw the same thing with several of the programs I tried, but finally >> one worked OK without those images. >> >> It is: PowerSDR/IF Stage V1.19.3.5 >> >> SETUP IF: >> >> RIG CONNECTION - rig type K3 (NOTE - K3, NOT KX3)( also get your com >> port and baud rate from the kx3 utility) >> >> IF FREQUENCIES global offset -5700 lo center (don't know what this >> is) 8215000 LSB 650 USB -800 >> >> This should get you started. >> >> GL de Jerry W4UK >> >> At 04:35 PM 10/12/2013, Tom wrote: >>> Hi >>> Has anyone tried to hook up their kx3 via the IQ output to SDR software? >>> I have so far tried three different programs, hdsdr, sdr-radio, and >>> SDR sharp, and they are all the same. I get images that run in >>> different directions as I tune. I tried everything to get get rid of >>> them to no avail. >>> I also tried three different sound boards and different cables. No >>> difference at all. Anybody have ideas? >>> Thanks, Tom va2fsq >> >> __ >> 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 __ 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] Using K3 to measure noise levels
also a review of S-Meter Lite here: http://nk7z.net/review-of-s-meter-lite/ and more info on how Nk&z used it to chase his RFI problem(s) here: http://nk7z.net/rfi-at-my-home-qth/ On 10/12/2013 6:24 PM, Sam Morgan wrote: you might find this software useful: http://www.seed-solutions.com/gregordy/Software/SMeterLite.htm On 10/12/2013 6:09 PM, Rich - K1HTV wrote: Using K3 to measure noise levels Since the beginning of the year I've been plagued with power line noise on the 6 Meter band. Before I called the local power company I used my K3 and rotatable 6M yagi antenna to quantify noise levels in various directions. I wanted to set a baseline to measure any improvement after the power line crew completed their work. Using the K3 with the beam aimed in the most quiet direction I was able to get a 0.0 dBV reference level based on the AFV reading for that particular direction. Then rotating the yagi, I took dBV readings every 10 degrees from 000 degrees to 360 degrees. If you have a rotatable beam for the VHF, UHF or higher HF bands and would like to map the noise levels in various directions around your QTH, here is how to do it with your K3. - Turn on your K3 and move to an quiet frequency on the band to be used. - Turn TECH mode to 'ON"' (Hold 'Menu' button to get to 'CONFIG' menu) - Rotate VFO-B to 'TECH MD' and rotate VFO-A dial to display "ON". - Tap MENU button - Tap 'DISP' button - Rotate VFO-B dial until 'AFV ' is displayed. This AFV reading () will be used as the 0.0 dBV reference level to which noise levels in other directions will be compared. - Rotate VFO-B to the maximum clockwise direction to read 'dBV'. - Record this reading and its beam heading. It should be close to 0.0 DB (+) plus or minus (-) a half DB or so. ***Note*** Do NOT move VFO-B from 'dBV' to 'AFV'. Doing so will reset the reference voltage. If you have a long yagi you probably want to measure every 10 degrees. On the higher HF bands every 30 degrees should do. - When finished taking all of your readings for each beam heading, tap "DISP" to return to the normal VFO-B display. After making noise measurements a few months after the initial ones, I was able to determine the level of improvement (in dB) resulting from the work done by the power company crew. I also discovered a new noise source in a different direction which needs to be corrected. In addition to making noise measurements You can also use the K3 AFV/dBV procedure described above to plot your yagi pattern. All you need is a Ham friend within a few miles of you to provide a steady QRP level carrier (With ID every 10 minutes, of course). I was able to plot my 6M yagi pattern and determine that something, possibly guys or HF antennas, was distorting the beam's pattern in certain directions. Hope that you found this K3 information of some use. 73, Rich - K1HTV -- GB & 73 K5OAI Sam Morgan __ 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] SDR software for KX3?
Hi Well I just bought a new outboard sound card and removed all previous cards. I'm now running an emu2020 and I can adjust the levels between the channels. I can minimize the images but as soon as you move up or down a while the images are back. I also have lots of spurious peaks making it impossible to distinguish between cw and spurs. There is no adjustment in software for the inputs but I can adjust the levels on the outside. The images look nowhere like what you see on YouTube. Getting pretty frustrated here Tom Original message From: Barry LaZar Date: 12/10/2013 17:28 (GMT-05:00) To: elecraft@mailman.qth.net Subject: Re: [Elecraft] SDR software for KX3? Guys, The one that really works well is NaP3. It was originally set up for the K3, but the latest iteration does a great job on the KX3. I've been running with the software for about a year or so, and I now don't know how function without it. 73, Barry K3NDM On 10/12/2013 5:04 PM, Jerry Flanders wrote: > I saw the same thing with several of the programs I tried, but finally > one worked OK without those images. > > It is: PowerSDR/IF Stage V1.19.3.5 > > SETUP IF: > > RIG CONNECTION - rig type K3 (NOTE - K3, NOT KX3)( also get your com > port and baud rate from the kx3 utility) > > IF FREQUENCIES global offset -5700 lo center (don't know what this > is) 8215000 LSB 650 USB -800 > > This should get you started. > > GL de Jerry W4UK > > At 04:35 PM 10/12/2013, Tom wrote: >> Hi >> Has anyone tried to hook up their kx3 via the IQ output to SDR software? >> I have so far tried three different programs, hdsdr, sdr-radio, and >> SDR sharp, and they are all the same. I get images that run in >> different directions as I tune. I tried everything to get get rid of >> them to no avail. >> I also tried three different sound boards and different cables. No >> difference at all. Anybody have ideas? >> Thanks, Tom va2fsq > > __ > 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] Using K3 to measure noise levels
you might find this software useful: http://www.seed-solutions.com/gregordy/Software/SMeterLite.htm On 10/12/2013 6:09 PM, Rich - K1HTV wrote: Using K3 to measure noise levels Since the beginning of the year I've been plagued with power line noise on the 6 Meter band. Before I called the local power company I used my K3 and rotatable 6M yagi antenna to quantify noise levels in various directions. I wanted to set a baseline to measure any improvement after the power line crew completed their work. Using the K3 with the beam aimed in the most quiet direction I was able to get a 0.0 dBV reference level based on the AFV reading for that particular direction. Then rotating the yagi, I took dBV readings every 10 degrees from 000 degrees to 360 degrees. If you have a rotatable beam for the VHF, UHF or higher HF bands and would like to map the noise levels in various directions around your QTH, here is how to do it with your K3. - Turn on your K3 and move to an quiet frequency on the band to be used. - Turn TECH mode to 'ON"' (Hold 'Menu' button to get to 'CONFIG' menu) - Rotate VFO-B to 'TECH MD' and rotate VFO-A dial to display "ON". - Tap MENU button - Tap 'DISP' button - Rotate VFO-B dial until 'AFV ' is displayed. This AFV reading () will be used as the 0.0 dBV reference level to which noise levels in other directions will be compared. - Rotate VFO-B to the maximum clockwise direction to read 'dBV'. - Record this reading and its beam heading. It should be close to 0.0 DB (+) plus or minus (-) a half DB or so. ***Note*** Do NOT move VFO-B from 'dBV' to 'AFV'. Doing so will reset the reference voltage. If you have a long yagi you probably want to measure every 10 degrees. On the higher HF bands every 30 degrees should do. - When finished taking all of your readings for each beam heading, tap "DISP" to return to the normal VFO-B display. After making noise measurements a few months after the initial ones, I was able to determine the level of improvement (in dB) resulting from the work done by the power company crew. I also discovered a new noise source in a different direction which needs to be corrected. In addition to making noise measurements You can also use the K3 AFV/dBV procedure described above to plot your yagi pattern. All you need is a Ham friend within a few miles of you to provide a steady QRP level carrier (With ID every 10 minutes, of course). I was able to plot my 6M yagi pattern and determine that something, possibly guys or HF antennas, was distorting the beam's pattern in certain directions. Hope that you found this K3 information of some use. 73, Rich - K1HTV -- GB & 73 K5OAI Sam Morgan __ 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] Using K3 to measure noise levels
Using K3 to measure noise levels Since the beginning of the year I've been plagued with power line noise on the 6 Meter band. Before I called the local power company I used my K3 and rotatable 6M yagi antenna to quantify noise levels in various directions. I wanted to set a baseline to measure any improvement after the power line crew completed their work. Using the K3 with the beam aimed in the most quiet direction I was able to get a 0.0 dBV reference level based on the AFV reading for that particular direction. Then rotating the yagi, I took dBV readings every 10 degrees from 000 degrees to 360 degrees. If you have a rotatable beam for the VHF, UHF or higher HF bands and would like to map the noise levels in various directions around your QTH, here is how to do it with your K3. - Turn on your K3 and move to an quiet frequency on the band to be used. - Turn TECH mode to 'ON"' (Hold 'Menu' button to get to 'CONFIG' menu) - Rotate VFO-B to 'TECH MD' and rotate VFO-A dial to display "ON". - Tap MENU button - Tap 'DISP' button - Rotate VFO-B dial until 'AFV ' is displayed. This AFV reading () will be used as the 0.0 dBV reference level to which noise levels in other directions will be compared. - Rotate VFO-B to the maximum clockwise direction to read 'dBV'. - Record this reading and its beam heading. It should be close to 0.0 DB (+) plus or minus (-) a half DB or so. ***Note*** Do NOT move VFO-B from 'dBV' to 'AFV'. Doing so will reset the reference voltage. If you have a long yagi you probably want to measure every 10 degrees. On the higher HF bands every 30 degrees should do. - When finished taking all of your readings for each beam heading, tap "DISP" to return to the normal VFO-B display. After making noise measurements a few months after the initial ones, I was able to determine the level of improvement (in dB) resulting from the work done by the power company crew. I also discovered a new noise source in a different direction which needs to be corrected. In addition to making noise measurements You can also use the K3 AFV/dBV procedure described above to plot your yagi pattern. All you need is a Ham friend within a few miles of you to provide a steady QRP level carrier (With ID every 10 minutes, of course). I was able to plot my 6M yagi pattern and determine that something, possibly guys or HF antennas, was distorting the beam's pattern in certain directions. Hope that you found this K3 information of some use. 73, Rich - K1HTV __ 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] SDR software for KX3?
Well I just tried nap3 and while I can get a spectrum there are so many artifacts it hardly seems worth it. In order to rule out the soundcard I bought a emu0202 and by adjusting the two inputs I can lower the images but not entirely eliminate them. I can run the optimization for images and it doesn't do much. So far the best I have obtained is with HDSdr but it really a far cry from something like the p3. How is this posdible ? I thought SDR was the next best thing! Tom Original message From: Monty S Date: 12/10/2013 16:40 (GMT-05:00) To: Tom Subject: Re: [Elecraft] SDR software for KX3? Tom, I use NaP3 and it works fine. Sounds like you need to tell your SDR program to invert the I and Q inputs Monty K2DLJ Sent from my iPhone > On Oct 12, 2013, at 1:35 PM, Tom wrote: > > Hi > Has anyone tried to hook up their kx3 via the IQ output to SDR software? > I have so far tried three different programs, hdsdr, sdr-radio, and SDR > sharp, and they are all the same. I get images that run in different > directions as I tune. I tried everything to get get rid of them to no avail. > I also tried three different sound boards and different cables. No difference > at all. Anybody have ideas? > Thanks, Tom va2fsq > > > __ > 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] K3 and JT65-HF
Thanks to all who replied, Mike K2MK got me going. For the record for those like me who totally forgot about this, you have to enable filters on a per-mode basis in the K3 Utility. Figuring that all data modes I'd ever operate would be narrow, I didn't enable the SSB filter for Data. Just made first JT65 QSO, 20W to the tribander. Thanks again for the help, 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ 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] SDR software for KX3?
Guys, The one that really works well is NaP3. It was originally set up for the K3, but the latest iteration does a great job on the KX3. I've been running with the software for about a year or so, and I now don't know how function without it. 73, Barry K3NDM On 10/12/2013 5:04 PM, Jerry Flanders wrote: I saw the same thing with several of the programs I tried, but finally one worked OK without those images. It is: PowerSDR/IF Stage V1.19.3.5 SETUP IF: RIG CONNECTION - rig type K3 (NOTE - K3, NOT KX3)( also get your com port and baud rate from the kx3 utility) IF FREQUENCIES global offset -5700 lo center (don't know what this is) 8215000 LSB 650 USB -800 This should get you started. GL de Jerry W4UK At 04:35 PM 10/12/2013, Tom wrote: Hi Has anyone tried to hook up their kx3 via the IQ output to SDR software? I have so far tried three different programs, hdsdr, sdr-radio, and SDR sharp, and they are all the same. I get images that run in different directions as I tune. I tried everything to get get rid of them to no avail. I also tried three different sound boards and different cables. No difference at all. Anybody have ideas? Thanks, Tom va2fsq __ 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] SDR software for KX3?
I saw the same thing with several of the programs I tried, but finally one worked OK without those images. It is: PowerSDR/IF Stage V1.19.3.5 SETUP IF: RIG CONNECTION - rig type K3 (NOTE - K3, NOT KX3)( also get your com port and baud rate from the kx3 utility) IF FREQUENCIES global offset -5700 lo center (don't know what this is) 8215000 LSB 650 USB -800 This should get you started. GL de Jerry W4UK At 04:35 PM 10/12/2013, Tom wrote: Hi Has anyone tried to hook up their kx3 via the IQ output to SDR software? I have so far tried three different programs, hdsdr, sdr-radio, and SDR sharp, and they are all the same. I get images that run in different directions as I tune. I tried everything to get get rid of them to no avail. I also tried three different sound boards and different cables. No difference at all. Anybody have ideas? Thanks, Tom va2fsq __ 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] SDR software for KX3?
Hi Has anyone tried to hook up their kx3 via the IQ output to SDR software? I have so far tried three different programs, hdsdr, sdr-radio, and SDR sharp, and they are all the same. I get images that run in different directions as I tune. I tried everything to get get rid of them to no avail. I also tried three different sound boards and different cables. No difference at all. Anybody have ideas? Thanks, Tom va2fsq __ 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 and JT65-HF
Hi Fred, You probably mean you use AFSK A for RTTY. For JT65-HF you want DATA A. LINE IN is correct and MIC+LIN off is correct although I suspect the K3 automatically turns MIC+LIN off in any of the data modes. I use VOX for all data modes. Never had a problem. 73, Mike K2MK k6dgw wrote > While putting Alpine County on the air for the Cal QSO Party, a couple > of the crew were running JT65-HF prior to the contest start. I thought > I might try it out and need a couple of answers: > > 1. What mode do I use? I run AFSK in DATA A on RTTY, audio goes to > LINE IN, MIC+LINE is off. > > 2. What's the best way to key the K3? On RTTY, N1MM/MMTTY key the rig > via the CAT port. > > 73, > > Fred K6DGW -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-and-JT65-HF-tp7579810p7579812.html Sent from the Elecraft mailing list archive at 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
Re: [Elecraft] K3 and JT65-HF
> 1. What mode do I use? I run AFSK in DATA A on RTTY, audio goes to > LINE IN, MIC+LINE is off. Use DATA A with the same settings ... 2. What's the best way to key the K3? On RTTY, N1MM/MMTTY key the rig via the CAT port. WSJT-X can key via software command, RTS or DTR *on a separate port* or using DXLab Suite's CI-V Commander. As an alternative you can use VOX. 73, ... Joe, W4TV On 10/12/2013 2:09 PM, Fred Jensen wrote: While putting Alpine County on the air for the Cal QSO Party, a couple of the crew were running JT65-HF prior to the contest start. I thought I might try it out and need a couple of answers: 1. What mode do I use? I run AFSK in DATA A on RTTY, audio goes to LINE IN, MIC+LINE is off. 2. What's the best way to key the K3? On RTTY, N1MM/MMTTY key the rig via the CAT port. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ 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] K3 and JT65-HF
While putting Alpine County on the air for the Cal QSO Party, a couple of the crew were running JT65-HF prior to the contest start. I thought I might try it out and need a couple of answers: 1. What mode do I use? I run AFSK in DATA A on RTTY, audio goes to LINE IN, MIC+LINE is off. 2. What's the best way to key the K3? On RTTY, N1MM/MMTTY key the rig via the CAT port. 73, Fred K6DGW - Northern California Contest Club - CU in the 2014 Cal QSO Party 4-5 Oct 2014 - www.cqp.org __ 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/KPA500/KAT500 Problem-Need Help
Hi Fred, Thanks for the pointer. Yes, I had it set to 1500 watts Your suggestion got me thinking along similar lines and I checked out my setting for "Amplifier Key Interrupt" under VSWR settings. It was set (by default I presume) to a very high value, so the amp PTT was never interrupted regardless of SWR. I have set it down to 1.5 (my max tuned SWR on any antenna is about 1.3 now). Now the first dot does not upset the KPA500! (I wonder if the first dot is being transmitted at high power completely?) So, thanks again. I might be on the right track. Amp Key Interrupt set at 1.5 might be too low, but I'll fiddle with it a bit. The jury's still out, but at least it's twitching a bit. 73/Gary W2CS On Oct 12, 2013, at 11:46 AM, "Cady, Fred" wrote: > Hi Gary, > Have you set the KAT500 Amplifier Key Interrupt Power configuration? The KPA > is delivered with that set at 29 watts so if the tuner sees more than 29 > watts it won't open the keying line. You have to set that parameter in the > KAT500 configuration to "Optimize for Elecraft KPA500". > > Cheers, > > Fred Cady > KE7X > "The Elecraft K3: Design, Configuration and Operation 2nd ed" > "The Elecraft KX3 - Going for the summit" > www.ke7x.com or www.lulu.com > (Coming soon: "The KPA500 and KAT500 - the Elecraft K-Line Dream Station") > fcady at ieee dot org > >> -Original Message- >> From: elecraft-boun...@mailman.qth.net [mailto:elecraft- >> boun...@mailman.qth.net] On Behalf Of Gary Ferdinand >> Sent: Saturday, October 12, 2013 7:27 AM >> To: elecraft@mailman.qth.net >> Subject: [Elecraft] K3/KPA500/KAT500 Problem-Need Help >> >> When going to a high band (15, 10) from another, with the KAT >> presenting < 1.1 SWR to the KPA, I am getting a KPA fault 11 (power >> amplifiers are dissipating excessive power) and sometimes the "Hi SWR" >> fault. As I watch the LEDs on the KPA, what I see on the first dot >> sent is the red fault light, the LCD description AND full red bars on >> the SWR KPA display. The KAT display shows the 1.2 green light at all >> times. The second dot (after a fault reset) shows normal KPA operation. >> The KAT is operated in MAN mode with a L/C setting previously >> established. >> >> Am I having an issue with the amplifier disable before the tuner has >> settled? Or? The SWR as displayed by the KAT utility is approx 5:1 on >> 10 and as high as 7:1 on 15 (antenna side of the KAT). >> >> For other than six, looking outbound from the KAT, is RG213 to a DXE AT >> 4:1 balun, to approx 60' of open wire line at a nominal 580 ohms. CM >> chokes exist in the open wire line on the antenna side of the balun. >> LadderSnaps are used as spacers. The radiator is a 160 meter dipole, >> full length, in the clear from end to end. The firmware on the KPA is >> 1.33 (though it behaved similarly on 1.32 and whatever shipped with >> it). The firmware on the KAT is 1.41. The firmware on the K3 is 4.67. >> >> So the question: Why am I getting a KPA fault on the first dot after a >> band change on at least 10 and 15? Needless to say my KPA log is full >> of fault 11s. My band change routine is: select band, send a dot, >> clear the fault, operate. Not what I was hoping for. >> >> Tnx for any help. 73, >> >> Gary W2CS >> >> __ >> 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/KPA500/KAT500 Problem-Need Help
Hi Gary, Have you set the KAT500 Amplifier Key Interrupt Power configuration? The KPA is delivered with that set at 29 watts so if the tuner sees more than 29 watts it won't open the keying line. You have to set that parameter in the KAT500 configuration to "Optimize for Elecraft KPA500". Cheers, Fred Cady KE7X "The Elecraft K3: Design, Configuration and Operation 2nd ed" "The Elecraft KX3 - Going for the summit" www.ke7x.com or www.lulu.com (Coming soon: "The KPA500 and KAT500 - the Elecraft K-Line Dream Station") fcady at ieee dot org > -Original Message- > From: elecraft-boun...@mailman.qth.net [mailto:elecraft- > boun...@mailman.qth.net] On Behalf Of Gary Ferdinand > Sent: Saturday, October 12, 2013 7:27 AM > To: elecraft@mailman.qth.net > Subject: [Elecraft] K3/KPA500/KAT500 Problem-Need Help > > When going to a high band (15, 10) from another, with the KAT > presenting < 1.1 SWR to the KPA, I am getting a KPA fault 11 (power > amplifiers are dissipating excessive power) and sometimes the "Hi SWR" > fault. As I watch the LEDs on the KPA, what I see on the first dot > sent is the red fault light, the LCD description AND full red bars on > the SWR KPA display. The KAT display shows the 1.2 green light at all > times. The second dot (after a fault reset) shows normal KPA operation. > The KAT is operated in MAN mode with a L/C setting previously > established. > > Am I having an issue with the amplifier disable before the tuner has > settled? Or? The SWR as displayed by the KAT utility is approx 5:1 on > 10 and as high as 7:1 on 15 (antenna side of the KAT). > > For other than six, looking outbound from the KAT, is RG213 to a DXE AT > 4:1 balun, to approx 60' of open wire line at a nominal 580 ohms. CM > chokes exist in the open wire line on the antenna side of the balun. > LadderSnaps are used as spacers. The radiator is a 160 meter dipole, > full length, in the clear from end to end. The firmware on the KPA is > 1.33 (though it behaved similarly on 1.32 and whatever shipped with > it). The firmware on the KAT is 1.41. The firmware on the K3 is 4.67. > > So the question: Why am I getting a KPA fault on the first dot after a > band change on at least 10 and 15? Needless to say my KPA log is full > of fault 11s. My band change routine is: select band, send a dot, > clear the fault, operate. Not what I was hoping for. > > Tnx for any help. 73, > > Gary W2CS > > __ > 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] KX3 2-meter module progress report
Thanks for the update Wayne, For myself the main use will be to interface to a 24GHz to 144MHz transverter, so the issues arn't as great a problem. Although having good dynamic range and adequate sensitivity would be useful. The K3 is a bit of a big box to lug around, which is why the KX3 was a more attractive proposition as I already have a TS2000X to use at home. I'd be less interested in using FM with the KX3 and KX3-2M as I already have a handheld radio that I use for occasionally operating through repeaters. Cheers - Dave (G0DJA) - Original Message - From: "Wayne Burdick" Sent: Saturday, October 12, 2013 2:32 PM Subject: Re: KX3 2-meter module progress report Hi Dave, The KX3-2M module occupies less than one cubic inch -- that's about 1/15th the space occupied by the K144XV, the 2-m module used in the K3. Given this, we had to make some design tradeoffs. The KX2-2M's sensitivity is nearly as good as the K144XV's, but the latter has higher power output and somewhat greater dynamic range. __ 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] KX3 2-meter module progress report
Hi Dave, The KX3-2M module occupies less than one cubic inch -- that's about 1/15th the space occupied by the K144XV, the 2-m module used in the K3. Given this, we had to make some design tradeoffs. The KX2-2M's sensitivity is nearly as good as the K144XV's, but the latter has higher power output and somewhat greater dynamic range. I think if you were trying to win a VHF contest in a strong-signal environment, you might want heavier weaponry. But after the war, if your side lost and you had to run to the hills with only what you would carry, a 2-pound KX3 with 2 meter capability would be an excellent choice. 73, Wayne N6KR "Dave" wrote: > Has anyone done any tests of sensitivity/selectivity and IM3 performance yet > please? Some of us use VHF and UHF for more than FM via repeaters, like > Auroral, Sporadic-E, Meteor Scatter and enhanced Tropo propagation > conditions. The contest people will also want to know about the stong signal > handling capabiliies for contest working. In Europe band occupancy can be a > bit intense at times in major contests. __ 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] Blown KPA3 ??
So, I was running WSPR last night at 0.1w during a rain storm. While in the middle of a transmit cycle, an out-of-the-blue lightning strike happened in our neighborhood; no warning, no indications of impending t-storms, nothing. The K3 is a K3/100 with the KAT3, KDVR3, KRX3 and KBPF3. The K3 still receives just fine, but when I go to transmit, there is no power output when testing into a dummy load. Actually, that isn't quite true. The ATU will still tune, putting out 5 watts based upon the RF meter in the K3, but does not return a SWR reading when it does so. Furthermore, in CW mode I can transmit and get the power to about 5w when the transmitter is set to 10w; and I can set it for a setting below 5w and it seems to work, but if I go above 12w (turning on the KPA3), then the power indicator drops and shows less than 1w indicating (to me) a problem with the KPA3 components. I've reloaded the firmware, hoping against hope, with no change. I would welcome any advice/guidance for things to check. In the meantime, I've diving back into the manuals. Dave K3DCW "Real radio bounces off the sky" __ 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] K3/KPA500/KAT500 Problem-Need Help
When going to a high band (15, 10) from another, with the KAT presenting < 1.1 SWR to the KPA, I am getting a KPA fault 11 (power amplifiers are dissipating excessive power) and sometimes the "Hi SWR" fault. As I watch the LEDs on the KPA, what I see on the first dot sent is the red fault light, the LCD description AND full red bars on the SWR KPA display. The KAT display shows the 1.2 green light at all times. The second dot (after a fault reset) shows normal KPA operation. The KAT is operated in MAN mode with a L/C setting previously established. Am I having an issue with the amplifier disable before the tuner has settled? Or? The SWR as displayed by the KAT utility is approx 5:1 on 10 and as high as 7:1 on 15 (antenna side of the KAT). For other than six, looking outbound from the KAT, is RG213 to a DXE AT 4:1 balun, to approx 60' of open wire line at a nominal 580 ohms. CM chokes exist in the open wire line on the antenna side of the balun. LadderSnaps are used as spacers. The radiator is a 160 meter dipole, full length, in the clear from end to end. The firmware on the KPA is 1.33 (though it behaved similarly on 1.32 and whatever shipped with it). The firmware on the KAT is 1.41. The firmware on the K3 is 4.67. So the question: Why am I getting a KPA fault on the first dot after a band change on at least 10 and 15? Needless to say my KPA log is full of fault 11s. My band change routine is: select band, send a dot, clear the fault, operate. Not what I was hoping for. Tnx for any help. 73, Gary W2CS __ 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] KX3 2-meter module progress report
That's good news :-) Has anyone done any tests of sensitivity/selectivity and IM3 performance yet please? Some of us use VHF and UHF for more than FM via repeaters, like Auroral, Sporadic-E, Meteor Scatter and enhanced Tropo propagation conditions. The contest people will also want to know about the stong signal handling capabiliies for contest working. In Europe band occupancy can be a bit intense at times in major contests. Cheers - Dave (G0DJA) - Original Message - Sent: Friday, October 11, 2013 8:14 PM Subject: [Elecraft] KX3 2-meter module progress report The second prototype of the KX3's 2-meter module is working quite well. (It's the size of a credit card, and only about 1/8" thick.) We'll have one radio outfitted with this module on Saturday at Pacificon. __ 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
