* On 2021 18 Dec 23:09 -0600, David Hachadorian wrote: > After exchanging emails with N4ZR, who started this thread, we think this is > the easiest procedure: > > Tune the rig to 10.000 MHz in CW mode. Listen to the tone of the WWV > carrier, which should be close to your CW PITCH setting. > Switch back and forth between reverse cw and normal cw, adjusting REF CAL > until the tones are equal in pitch on normal and reverse. > > This procedure should get you calibrated well within 1 Hz, much better than > required for any amateur radio application that I can think of.
In addition, I installed the "Keuwlsoft Audio Frequency Counter" app on my Android phone and set it next to the speaker. Its display in Hertz makes dialing in the reference calibration value quick and easy. On my K3 it shows about .5 Hz difference between Norm and Rev. I certainly cannot hear that! 73, Nate, N0NB -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Web: https://www.n0nb.us Projects: https://github.com/N0NB GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819 ______________________________________________________________ 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
