> I notice that the frequency calculated by MacDoppler is slightly off from > the frequency that I hear the telemetry at.
AO-73's transmit frequency drifts around as the spacecraft warms and cools. I remember being surprised to see the telemetry trace increase in frequency on my waterfall display when my receiver was at a fixed frequency. I initially thought something was wrong with the local oscillator in the radio, but my signal generator showed a nice straight vertical line. There is likely nothing wrong with your setup. -Joe KM1P _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
