[amsat-bb] Re: AO-16 report

Mark L. Hammond n8mh at embarqmail.com
Fri Jan 25 12:12:37 PST 2008

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.


Mark N8MH

Date: Thu, 24 Jan 2008 22:55:47 -0800 
From: "Greg D." <ko6th_greg at hotmail.com> 
Subject: [amsat-bb] Re: AO-16 report 
To: <amsat-bb at amsat.org> 
Message-ID: <BLU133-W280FF8A5783F16558CB4AAA9390 at 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 

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