The moon bounces around and causes some pretty good doppler. Good thing that JT65-HF also has AFC built in.
http://www.packetradio.com/pdfzips/jt65-hf-setup.pdf *AFC enables automatic frequency control and will attempt to follow a signal that exhibits drift. Its original intent is to compensate for Doppler shift when using JT65 for EME contacts, but it has application on HF as well. Not for Doppler shift compensation, but for stations who show VFO drift.* The biggest problem is clock drift, not RF drift. Regardless, the beta testers claimed the did JT65 without issue. Mike va3mw On Sun, May 29, 2016 at 8:51 PM, Luke via Elecraft <[email protected] > wrote: > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
