Great to hear Gary. You should be all set for the calibration of the KX3 now.
73 David Anderson GM4JJJ > On 23 May 2014, at 05:53, <kj...@kj7rt.com> wrote: > > First I want to thank those that pointed out that my first two postings > didn't contain message content, probably due to using HTML. You were > right, I changed the default for this email program to plain text. > > Second thank you to the responders that suggested solutions to my > "instability" non-problem. Turns out it was the input level to the HP > 5334A. Adjustment of the counter nailed it pretty close. Stabilized at > 49.380000 MHz +-2 Hz. > > 73 > Gary Marklund > KJ7RT > Sun City, AZ > USA > >> -------- Original Message -------- >> Subject: [Elecraft] XG50 - Frequency Instability >> From: <kj...@kj7rt.com> >> Date: Thu, May 22, 2014 7:31 am >> To: Elecraft@mailman.qth.net >> >> >> I am trying to use my XG50 to run the Extended Temperature Compensation >> Procedure on my KX3. This is the first time I have attempted to use the >> XG50 since building it. I have completed the 8 hour burn-in. >> >> When I first connect the XG-50 to my HP frequency counter, I get a >> reading of something like 49.379990. Then after running for several >> minutes it starts dropping in frequency to something more like >> 49.32xxxx. It is still wildly fluctuating. If I connect the 10MHz output >> of my Trimble Thunderbolt GPSDO to the counter it stays quite stable >> just below 10 MHz. >> >> I re-soldered all the XG50 components and tried with both a metered >> home-brew power supply and a 12v SLA battery with the same result >> although re-soldering made a significant but not permanent improvement. >> >> My lab is in my photographic darkroom which has an ambient temperature >> of about 68 degrees F and the AC does blow across the work area. >> >> >> Thanks, >> >> Gary Marklund >> KJ7RT >> Sun City, AZ >> USA >> >> ______________________________________________________________ >> 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 kj...@kj7rt.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 gm4...@yahoo.co.uk ______________________________________________________________ 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
