[amsat-bb] Re: Doppler Tuning Convention Question (summary)

John,

I meant to mention a nice page discussing Doppler shift. It explains many of the questions/comments/rants brought up about Doppler shifts and corrections:

http://www.qsl.net/vk3jed/doppler.html

It gives a few graphic illustrations of how Doppler shift varies depending on the pass, and why it can be radically different for different stations in the QSO. As you observed, Full Doppler Tuning, FDT, works for everybody, everytime. I will add that any can play. Anything else is just an approximation. We have 40 years of experience showing that approximation is usuable, but we have long been able to do better.

Thanks for motivating me to get back to an article on exactly this subject I have been meaning to finish.

73s,

Alan WA4SCA