Brian, I believe that you will find that the Doppler shift is a proportional to the frequency. Therefore, the shift at 432MHZ would be approximately 3 times the shift at 144MHz.
A simple thought experiment demonstrates this. Assume you have a 144MHz frequency source & it is moving away from the receiver fast enough to cause a 5kHz negative shift. If you decrease the frequency of the source and the shift remains 5kHz, consider what the result would be if you decrease the source frequency all the way down to 5kHz -- the resulting received frequency would be 0Hz. That is obviously not correct. The frequency shift is dependent on BOTH the relative speed and the frequency. 73, Ray, K9DUR http://k9dur.info _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
