[Elecraft] NAQCC Sprint Wednesday Night
The July sprint is this coming Wednesday evening local time (July 15th, EDT - 8:30-10:30PM, CDT - 7:30-9:30PM, MDT - 6:30-8:30PM, PDT - 5:30-7:30PM), which translates as Thursday, July 16th, 0030 to 0230Z in all cases. For all the official information, please go to: http://naqcc.info/sprint201507.html There you will find all the details as to time, frequencies and other important information. Certificates: SWA (simple wire antennas) certificates by call area, VE and DX for 1st, 2nd and 3rd place finishers (New!). A Certificate for top score in the GAIN antenna category. Prizes: Too many to list!! - check out the prizes page on our website. This is a monthly event that caters to the CW veteran, the CW newcomer, straight key and bug fans. All are welcome to participate (this includes QRO); but you must use QRP power levels to compete for awards. If you've been hesitant to join in our sprints because you hear other sprints running at breakneck speeds, have no fear. Our sprints are geared to the newcomer to CW and/or contesting. Virtually everyone including the many veteran contesters who regularly enter our sprints will slow down to YOUR speed to help you make your contacts. If you are not already a member of NAQCC... membership is FREE! Now is your chance to join the largest QRP CW Club in the world!! We currently have 7100+ members in: All 50 States - 9 VE Provinces - 100 Countries. Sign up on the NAQCC website today (http://naqcc.info/) and receive a handsome certificate, with your membership number on it, which is good for life. Come join us and have a real good time! 72/73 de Larry W2LJ NAQCC #35 for NAQCC http://naqcc.info/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] MacOSX Logging Software
After trying several Mac logging programs when switching from Windoze, RUMLog is the clear winner for me. Focus on what meets your logging needs, they all support Th K-series as far as control goes. RUMLog ties in well with fldigi for digital modes, has a really good interface to LoTW and cluster. It does not have built in rotor control, but I wrote a program that talks to it via Apple script. http://nf4l.com and some fldigi config notes. Since you mention LoTW, I assume you are interested in DX. Tom DL2RUM is an active DXer and it shows in his program. And RUMLog is free. 73, Mike NF4L On Jul 10, 2015, at 7:37 AM, Byron Peebles n...@arrl.net wrote: With my migration from TenTec to Elecraft, I was planning to also move my logging and station control from Windows to MacOSX. I have found sources like DogParkRadio to be tempting, but I wanted to check with Elecraft users on which packages best support the K3 (and upcoming K3S). I use mostly HF CW/SSB, but rotor control (M2),, LoTW, DX Cluster integration are important. And I might try other digital modes in the future. 73, Byron __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@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] [K3] Odd freq shift in diversity mode after VFO upgrade
Rick, When you say WWV zero beats at exactly 10.000 in USB mode, what exactly are you zero beating? The carrier or one of the transmitted tones? What happens if you are not in either Split or Diversity - reception on the main receiver only (turn the SUB off)? What the P3 should show is the WWV carrier at 10.000 MHz, but the K3 audio will not be receiving that carrier in SSB mode. The K3 will receive one or the other of the sidebands, so the green band will be offset from the center indicating the sideband that is being received. The center of the green band should be offset by the amount of shift you have dialed in on the SHIFT/WIDTH knobs. If you are using LO/HI CUT, the amount it should be shifted will be the center of the difference between the Hi and Lo frequencies. Normally when you listen to an SSB station, the K3 frequency will indicate the suppressed carrier frequency - but WWV is an AM station, and when tuned properly to listen to the audio, you will not hear the carrier (it is out of the receive passband), but the P3 will still indicate the carrier of the WWV signal. 73, Don W3FPR On 7/11/2015 1:56 PM, rick.ag...@gmail.com wrote: Hi all I have a very odd thing happening in diversity mode after installing the new VFO's. I have a K3 with dual receivers and new VFOs using a dipole and loop antenna when in diversity. I also have a P3. I am on current 5.29 firmware and have successfully gone through all required calibration steps after upgrading the VFO. Scenario follows ... I am listening to WWV 10 MHz in USB mode. When I am in Split, not Diversity, WWV zero beats at exactly 10.000 MHz. The P3 green band denoting the K3's passband is nicely lined up with the upper sideband of WWV. When I am in Diversity mode, however, WWV zero beats at exactly 9.9985 MHz. On the P3 I clearly see the WWV signal at 10.000 MHz while the green band denoting the K3's frequency is just as clearly 1.5 kHz lower. I can't figure out what is causing this -1.5 kHz shift! I have had my K3 for some time so I feel I am reasonably competent with it :) but this has me stumped. I have asked K3 Support about this but I thought someone out there might have seen and dealt this this already. 73 Rick AG6AY K3 5706 P3 1835 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845.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 Message delivered to w3...@embarqmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K2 Alignment
I've been using my K2/100 for a couple of years, and have been very satisfied. I have noted some drift in the freq, so decided to go through a complete realignment process. On Page 65 of the manual it describes a measurement of the BFO range as being 4-6 kHz. I measure 3.52 kHz. Question one, is this sufficiently out to be of concern? and question 2, what are the next steps to correct any problem? Tom KN6DR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Hi all I have a very odd thing happening in diversity mode after installing the new VFO's. I have a K3 with dual receivers and new VFOs using a dipole and loop antenna when in diversity. I also have a P3. I am on current 5.29 firmware and have successfully gone through all required calibration steps after upgrading the VFO. Scenario follows ... I am listening to WWV 10 MHz in USB mode. When I am in Split, not Diversity, WWV zero beats at exactly 10.000 MHz. The P3 green band denoting the K3's passband is nicely lined up with the upper sideband of WWV. When I am in Diversity mode, however, WWV zero beats at exactly 9.9985 MHz. On the P3 I clearly see the WWV signal at 10.000 MHz while the green band denoting the K3's frequency is just as clearly 1.5 kHz lower. I can't figure out what is causing this -1.5 kHz shift! I have had my K3 for some time so I feel I am reasonably competent with it :) but this has me stumped. I have asked K3 Support about this but I thought someone out there might have seen and dealt this this already. 73 Rick AG6AY K3 5706 P3 1835 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Everyone - much thanks for the input. I will try for a compiled response since I had so many responses! what exactly are you zero beating? The WWV carrier ... well ok I'm not exactly zero beating in the proper sense. By tuning the K3 through the 10.000 MHz WWV AM station using SSB mode with Lo = 0.00, I can quickly confirm the extremely low frequency audio is indeed the carrier and that it 'goes through zero Hz at 10.000 MHz. Again, this is not a proper zero beat but it's close enough for Gov't work :) What happens if you are not in either Split or Diversity WWV 10 MHz carrier 'zero beatsz at exactly 10.000 MHz If you are using LO/HI CUT ... and other comments about band pass ... Yep, understood. Lo = 0.00 and Hi = 2.80 when I observed this. Normally when you listen to an SSB station ... Yep, understand. See my test description. If you have a combination of 5- and 8-pole filters in the main and/or sub receivers I used 8-pole filters exclusively. I -did- buy them about a year or two apart, however, that should not matter. What filters do you have installed? Main: 1=15k, 2=6k, 3=2.8k, 4=2.1k, 5=0.4k Sub: 1=0.0, 2=0.0, 3=2.8k, 4=2.1k, 5=0.4k Freq Offset = 0.00 for all Gain = 0.00 for all except Filter 5 which is set to 2 db on Main and Sub Pay close attention to the filter bandwidth you have dialed in, and make sure that BOTH the main receiver and sub-receiver are using filters of the SAME bandwidth OK, I took a good hard look at the XFIL value as I went in and out of Diversity ... Tuning to 10. again. Lo = 0.00 and Hi = 2.80 Main Rx uses FL3 (2.8 kHz). Diversity uses FL3 also. *Now wait a darned minute* ... the 1.5 kHz shift 'went away'. I don't know how. I did fix some 20M DIGOUT settings I had whacked over Field Day but that surely can't affect this. Wayne I can no longer replicate this and I have not a clue how it fixed itself. I'm game to try more tests but heck I'm going to use this on IARU while I can! Rick AG6AY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845p7604853.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Remote KAT500
Fred, Wouldn't it be easier to just buy something like one of MFJ's remote tuners that are built exactly for the job you want your KAT500 to do? If I had a KAT500, I don't think I'd want my $700 Elecraft auto tuner left outside, where it was never meant to be. (Even if it was in a sealed, water-proof container). (And yes, I use a MFJ remote ATU for my portable Vertical.) Jeff C. VK4XA k6dgw wrote I'd like to hear from anyone who has remoted a KAT500 out to the base of a vertical. We're moving to an HOA community. The HOA appears to be quite benign and benevolent, I'm planning on a flag pole [with a flag on good wx days] in the backyard, with an insulator at the bottom where I'd like to remote my KAT500 in a wx-proof box. I'll probably power it through the same conduit that carries the coax. It would not be connected to the K3 of course. I'd like to run it in MAN mode as I do now. If I start in AUTO and step through all the band segments, will it learn the settings, and just recall them as soon as it senses RF? 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org - Jeff Cochrane - VK4XA Innisfail, QLD, Australia. K3 #4767 -- View this message in context: http://elecraft.365791.n2.nabble.com/Remote-KAT500-tp7604849p7604854.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Rick, I'll bet that when the frequency shift occurred, you had your bandwidth dialed to something 2.8KHz because in that situation, your Main RX filter would have been using your 6KHz filter in slot #2, and your SUB filter for slot #2 would have been -- EMPTY. Have fun in the contest! 73, Dale WA8SRA What filters do you have installed? Main: 1=15k, 2=6k, 3=2.8k, 4=2.1k, 5=0.4k Sub: 1=0.0, 2=0.0, 3=2.8k, 4=2.1k, 5=0.4k Freq Offset = 0.00 for all Gain = 0.00 for all except Filter 5 which is set to 2 db on Main and Sub Pay close attention to the filter bandwidth you have dialed in, and make sure that BOTH the main receiver and sub-receiver are using filters of the SAME bandwidth OK, I took a good hard look at the XFIL value as I went in and out of Diversity ... Tuning to 10. again. Lo = 0.00 and Hi = 2.80 Main Rx uses FL3 (2.8 kHz). Diversity uses FL3 also. *Now wait a darned minute* ... the 1.5 kHz shift 'went away'. I don't know how. I did fix some 20M DIGOUT settings I had whacked over Field Day but that surely can't affect this. Wayne I can no longer replicate this and I have not a clue how it fixed itself. I'm game to try more tests but heck I'm going to use this on IARU while I can! Rick AG6AY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Dale Hmm. I very well could have set Hi = 3.0 and that would set up the scenario you mentioned. Cool. That should not take long to try. However, I don't recall an absolute requirement for filter parity between main and sub rx as the firmware should select the largest available even when desired BW filter BW. I know diversity quality would be impacted if the filters were not identical but I would not have expected a -freq- shift like I observed. OK I just tried WWV with Lo = 0.00 and Hi = 3.0 on A and B VFO (using BSET). I am in USB Diversity mode tuned to WWV 10.000 MHz. WWV sounds fine XFIL = FL2 (6 kHz) -- yep. this is expected. I hit BSET XFIL = FL3 (2.8 kHz) -- Actually this is what I expected since this is the widest filter on RX B where Main: 1=15k, 2=6k, 3=2.8k, 4=2.1k, 5=0.4k Sub: 1=0.0, 2=0.0, 3=2.8k, 4=2.1k, 5=0.4k ... and no mysterious frequency shift. I still can't figure out where the 1.5 kHz shift came from but I'm grateful it is gone! Rick AG6AY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845p7604856.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Dale I think you may be on to something! I just used diversity on 20M in IARU and it is obvious that - RX A is on freq - RX B is 1.5 kHz low When I use BSET I see - RX A XFIL = FL2 (6 kHz) I hit BSET - RX B XFIL = FL3 (2.8 kHz) I then adjusted Hi from 3.0 kHz to 2.8 kHz. Lo! The instant the displayed RX A XFIL changed from FL2 (6 kHz) to FL3 (2.8 kHz) I magically heard the RX B audio shift magically by 1.5 kHz to align with RX B audio. Wow. That was -very- interesting to replicate! Thanks for poking at this with me. *Now that I understand it, I can work around it. Much, much thanks!* Wayne I think we have an honest live one for you now! Cheers Rick AG6AY Interesting! Rick AG6AY -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845p7604857.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Hi Rick, Pay close attention to the filter bandwidth you have dialed in, and make sure that BOTH the main receiver and sub-receiver are using filters of the SAME bandwidth (with offset adjusted if they are not 8-pole filters). For example, if your main RX has a 2.8 KHz filter installed and you are listening within that bandwidth, be sure that your sub-RX is ALSO using a 2.8 KHz filter. If not, you'll experience the frequency shift. I don't claim to know why; only that I've observed that behavior here with the new Synths. This shift did not occur with the original Synth cards. I don't consider it to be a problem; it just means that I need to get another filter for the sub-receiver so that the filter complement of the sub-RX matches that of the main RX, (which is supposed to be the case when using diversity reception anyway). If you have a bandwidth where you know that both the main RX and sub-RX are using the SAME filter bandwidth, use that bandwidth and see if the issue still occurs. If it does, then the issue is being caused by something other than what I mentioned above. 73, Dale WA8SRA Hi all I have a very odd thing happening in diversity mode after installing the new VFO's. I have a K3 with dual receivers and new VFOs using a dipole and loop antenna when in diversity. I also have a P3. I am on current 5.29 firmware and have successfully gone through all required calibration steps after upgrading the VFO. Scenario follows ... I am listening to WWV 10 MHz in USB mode. When I am in Split, not Diversity, WWV zero beats at exactly 10.000 MHz. The P3 green band denoting the K3's passband is nicely lined up with the upper sideband of WWV. When I am in Diversity mode, however, WWV zero beats at exactly 9.9985 MHz. On the P3 I clearly see the WWV signal at 10.000 MHz while the green band denoting the K3's frequency is just as clearly 1.5 kHz lower. I can't figure out what is causing this -1.5 kHz shift! I have had my K3 for some time so I feel I am reasonably competent with it :) but this has me stumped. I have asked K3 Support about this but I thought someone out there might have seen and dealt this this already. 73 Rick AG6AY K3 5706 P3 1835 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845.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 Message delivered to d...@lightstream.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] Remote KAT500
I'd like to hear from anyone who has remoted a KAT500 out to the base of a vertical. We're moving to an HOA community. The HOA appears to be quite benign and benevolent, I'm planning on a flag pole [with a flag on good wx days] in the backyard, with an insulator at the bottom where I'd like to remote my KAT500 in a wx-proof box. I'll probably power it through the same conduit that carries the coax. It would not be connected to the K3 of course. I'd like to run it in MAN mode as I do now. If I start in AUTO and step through all the band segments, will it learn the settings, and just recall them as soon as it senses RF? 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 Alignment
Tom, Your limited BFO range will only be a problem when aligning the IF filters. If you find you cannot align the filters properly, then you will have to correct that problem, but it may be a case that you have a marginal solder connection somewhere in the BFO area and re-flowing the soldering will give you a wider range. Look at the RF Board schematic sheet 2 in the lower right corner to identify the components involved with the BFO. Typically the K2 does not drift but a few Hz after being given a bit of a warmup period (10 or 15 minutes). Proper dial calibration and drift are 2 different things. Drift is the frequency change over a short period of time, such as a single operating session (usually do to temperature changes). Dial Calibration can change over time, but typically does not vary much because the calibration data is contained in EEPROM and does not depend on any realtime reference oscillator for accuracy and consistency. If your situation is really drift (by my definition above), then I need to ask how old is your K2 (serial number please). If it is SN 3000 or below, does it have the A to B upgrades as well as the other Elecraft mods installed. There are 2 mod kits that are important for temperature stability - the BFOMDKT and E850138 (the PLL temperature compensation mod - so called thermistor mod). Look at the BFO inductor L33 on the bottom of the RF board - if it has many turns of fine wire and is held in place by a 1/8 watt resistor, then you have the BFOMDKT installed. Then look on the top of the RF board on the left side near the Control Board for RP3 (it may be under the KDSP2 or KAF2 if you have those options). If you see a small board with resistors on it in the RP3 location, you have the thermistor mod installed. Especially since you have the K2/100, if either of those mods are missing, I suggest you install them. In addition, if your K2 is below SN 3000, you may want to consider doing the entire set of A to B upgrade mods (I recommend it). Once you have checked those mods, go on with your calibration and alignment process. For the K2 Dial Calibration and filter alignment, I suggest you use Spectrogram or another audio spectrum analyzer for the best results. See my webpage www.w3fpr.com article on K2 Dial Calibration. OK, I have given you more information at one time than you may have wanted. However, it is all related to dial calibration and drift (again, two different things). Work through it one step at a time, and if you have questions as you go along, please ask. 73, Don W3FPR On 7/11/2015 1:48 PM, Tom Field wrote: I've been using my K2/100 for a couple of years, and have been very satisfied. I have noted some drift in the freq, so decided to go through a complete realignment process. On Page 65 of the manual it describes a measurement of the BFO range as being 4-6 kHz. I measure 3.52 kHz. Question one, is this sufficiently out to be of concern? and question 2, what are the next steps to correct any problem? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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] Remote KAT500
On Sat,7/11/2015 2:41 PM, Fred Jensen wrote: I'd like to run it in MAN mode as I do now. If I start in AUTO and step through all the band segments, will it learn the settings, and just recall them as soon as it senses RF? Yes, as long as it remains in MAN mode. 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 arch...@mail-archive.com
Re: [Elecraft] [K3] Odd freq shift in diversity mode after VFO upgrade
Rick, If you have a combination of 5- and 8-pole filters in the main and/or sub receivers, it's the new firmware isn't adjusting for the difference between the two when in diversity mode with the new synths. I'll look into that, and if it's a firmware issue, I'll get it fixed ASAP. What filters do you have installed? You can use K3 Utility's crystal configuration screen to check this without opening up the radio. 73, Wayne N6KR On Jul 11, 2015, at 10:56 AM, rick.ag...@gmail.com wrote: Hi all I have a very odd thing happening in diversity mode after installing the new VFO's. I have a K3 with dual receivers and new VFOs using a dipole and loop antenna when in diversity. I also have a P3. I am on current 5.29 firmware and have successfully gone through all required calibration steps after upgrading the VFO. Scenario follows ... I am listening to WWV 10 MHz in USB mode. When I am in Split, not Diversity, WWV zero beats at exactly 10.000 MHz. The P3 green band denoting the K3's passband is nicely lined up with the upper sideband of WWV. When I am in Diversity mode, however, WWV zero beats at exactly 9.9985 MHz. On the P3 I clearly see the WWV signal at 10.000 MHz while the green band denoting the K3's frequency is just as clearly 1.5 kHz lower. I can't figure out what is causing this -1.5 kHz shift! I have had my K3 for some time so I feel I am reasonably competent with it :) but this has me stumped. I have asked K3 Support about this but I thought someone out there might have seen and dealt this this already. 73 Rick AG6AY K3 5706 P3 1835 -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-Odd-freq-shift-in-diversity-mode-after-VFO-upgrade-tp7604845.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 Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K2 Alignment
It is a bit on the low side, but may still be ok. Where the limited range could become a problem is in the filter alignment stage. You could try continuing and see how it goes; if the restricted range prevents you from aligning the filters properly, then some attention to the BFO circuitry may be required. 73, Matt VK2RQ On Sat, Jul 11, 2015 at 10:48 AM -0700, Tom Field docw...@gmail.com wrote: I've been using my K2/100 for a couple of years, and have been very satisfied. I have noted some drift in the freq, so decided to go through a complete realignment process. On Page 65 of the manual it describes a measurement of the BFO range as being 4-6 kHz. I measure 3.52 kHz. Question one, is this sufficiently out to be of concern? and question 2, what are the next steps to correct any problem? Tom KN6DR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 matt.vk...@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
