On 07/22/2014 07:49 AM, [email protected] wrote: > SSB/CW birds are the only way to go and if you build it they will > come .
Think about what it would be like to tune for Doppler while working SSB through a LEO satellite on microwave. Before you say "computer control", work out the effect of even a tiny error in your clock or orbital elements on a high elevation pass and remember that SSB has no carrier or pilot tone for closed-loop frequency tracking. Sure, you could have a second receiver track the satellite's beacon. But if you're going to all that trouble, why not just have it track a single high speed data stream from the satellite, one that's much less affected by Doppler in the first place? _______________________________________________ Sent via [email protected]. 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
