[Elecraft] KX3-2M CW Drift
I have two KX3's each with a 2M module. Both units have had the temp calibration done to them. When using CW, there is a noticeable drift in the received CW side tone. It has an unsable warble back and forth slowly +/- ~10 HZ or so. Is this the natural drift of the 2M unit I'm seeing here? If so I'm assuming that's as good as it gets. Chris K6OZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3-2M CW Drift
This is within spec, though we're still looking at ways to further reduce it. 73, Wayne N6KR On Aug 17, 2014, at 4:20 AM, Chris Johnson elecr...@ozy.us wrote: I have two KX3's each with a 2M module. Both units have had the temp calibration done to them. When using CW, there is a noticeable drift in the received CW side tone. It has an unsable warble back and forth slowly +/- ~10 HZ or so. Is this the natural drift of the 2M unit I'm seeing here? If so I'm assuming that's as good as it gets. Chris K6OZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3-2M CW Drift
Mine drifts like crazy on 6 meters but I haven’t done the temp. comp. Will that help ? It’s not my main 6 meters radio (my K3 is) so it hasn’t been a big concern. On Aug 17, 2014, at 12:21 PM, Wayne Burdick n...@elecraft.com wrote: This is within spec, though we're still looking at ways to further reduce it. 73, Wayne N6KR On Aug 17, 2014, at 4:20 AM, Chris Johnson elecr...@ozy.us wrote: I have two KX3's each with a 2M module. Both units have had the temp calibration done to them. When using CW, there is a noticeable drift in the received CW side tone. It has an unsable warble back and forth slowly +/- ~10 HZ or so. Is this the natural drift of the 2M unit I'm seeing here? If so I'm assuming that's as good as it gets. Chris K6OZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 bhem...@mac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3-2M CW Drift
I strongly recommend doing the temperature compensation. On 6 meters this will leave you something like just +/- 3 Hz of hunting. 73, Wayne N6KR On Aug 17, 2014, at 9:32 AM, Brian Hemmis bhem...@mac.com wrote: Mine drifts like crazy on 6 meters but I haven’t done the temp. comp. Will that help ? It’s not my main 6 meters radio (my K3 is) so it hasn’t been a big concern. On Aug 17, 2014, at 12:21 PM, Wayne Burdick n...@elecraft.com wrote: This is within spec, though we're still looking at ways to further reduce it. 73, Wayne N6KR On Aug 17, 2014, at 4:20 AM, Chris Johnson elecr...@ozy.us wrote: I have two KX3's each with a 2M module. Both units have had the temp calibration done to them. When using CW, there is a noticeable drift in the received CW side tone. It has an unsable warble back and forth slowly +/- ~10 HZ or so. Is this the natural drift of the 2M unit I'm seeing here? If so I'm assuming that's as good as it gets. Chris K6OZY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto: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 bhem...@mac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3-2M CW Drift
Date: Sun, 17 Aug 2014 09:36:46 -0700 From: Wayne Burdick n...@elecraft.com To: Brian Hemmis bhem...@mac.com Cc: Elecraft Reflector elecraft@mailman.qth.net Subject: Re: [Elecraft] KX3-2M CW Drift Message-ID: 375fe400-0225-4061-8838-3653311da...@elecraft.com Content-Type: text/plain; charset=windows-1252 I strongly recommend doing the temperature compensation. On 6 meters this will leave you something like just +/- 3 Hz of hunting. 73, Wayne N6KR -- I have run tests on 6m at 5w simulating JT65 operation: Before doing the Temp Comp drift was up to 54-Hz After it was a couple Hz as Wayne stated. My test shows a big bump in the drift curves which I suspect is a bad temp point in the compensation process. I will repeat Temp Comp to see it this artifact disappears. http://www.kl7uw.com/KX3_FREQ_DRIFT_TABLE.pdf I have not tested at 2m. 73, Ed - KL7UW http://www.kl7uw.com Kits made by KL7UW Dubus Mag business: dubus...@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
