Actually, this is a great idea, Greg. It's the basis for AE4JY Moe Wheatley's AO40RCv program--the 400BPSK demodulator. In fact, his source coded is posted--it should help with the programming I'd think. It provided button pushes, com port selection, radio choices, etc.

Not sure there is ENOUGH carrier..at least from what I've been hearing. But I haven't looked at it with a waterfall yet; Drew KO4MA was doing that during our initial tests--he could see the carrier well as I recall.

73,

Mark N8MH

_______ Date: Thu, 24 Jan 2008 22:55:47 -0800 From: "Greg D." ko6th_greg@hotmail.com Subject: [amsat-bb] Re: AO-16 report To: amsat-bb@amsat.org Message-ID: BLU133-W280FF8A5783F16558CB4AAA9390@phx.gbl Content-Type: text/plain; charset="iso-8859-1"

If there is a slight carrier on the downlink side, I wonder if someone with a sound card and a "bit" of spare time could work up an automatic tuning adapter? Zero beat the carrier by tickling the mike up and down buttons; something like that. You'd need to sample (tap into) the received audio, and manually get the receiver close. Then let it run.

Crazy idea?

Greg KO6TH