[amsat-bb] Re: AO-7 help

[Joe]

Not Hard
Just Skill,

Just like my other post about operating as a Novice in the days of only 
crystal control.  You did not operate full duplex on 40 meters, yet we 
operated contests on one transmit freq and listened to the whole band 
for someone calling us.

We all have just gotten incredibly lazy.

Joe WB9SBD

Andrew Glasbrenner wrote:

>Glen Zook wrote:
>  
>
>>I haven't used AO-7 for some time (need to revise my antennas to do so again).  But, back in the "goode olde dayes" (when the satellite first went into orbit) we didn't have any problems with Doppler.  The accepted method was to leave the transmit frequency alone and keep one hand on the receiver to compensate for the frequency shift and send CW with the other hand (or hold the microphone for SSB).  No one even thought of compensating for Doppler any other way.
>>
>>Of course at the time everyone used a separate receiver and transmitter (no transceivers) so you could keep the receiver active while transmitting.  There were hundreds of QSOs made on each orbit and everyone had a "ball".
>>
>>Glen, K9STH
>>AMSAT 239 / LM 463
>>
>>Website:  http://k9sth.com
>>  
>>    
>>
>The half-duplex part is what makes it hard. I ran from 1992 until about 
>2006 without computer tuning, although I followed the current AMSAT 
>protocol of tuning the higher of the two frequencies. You don't drift 
>into others as much that way. I've tried this all ways, and if you are 
>going to run half-duplex, life is much easier with CAT tuning.
>
>73, Drew KO4MA
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