Dave,

That's another problem with digital SSB.  It is very hard to toon in unless 
you have the exact frequency.  The software will give a sighted user a 
waterfall like display to help in tuning, but it isn't much help for us.
If you have the correct frequency, that seems to work well as long as the 
other stations have a very good, noise free, fade free and multipath free 
signal.

Bob, K8LR, [log in to unmask]

----- Original Message ----- 
From: Dave Marthouse
To: 'Bob, K8LR'
Cc: 'For blind ham radio operators'
Sent: Sunday, August 25, 2013 4:02 PM
Subject: Digital


Hi Bob,

I assume that the Dv2 software is speech-friendly.  This brings up another 
question, how critical was tuning when you were attempting to do digital on 
hf.  Was it a matter of tuning across a signal till things locked and audio 
was decoded or did you know the frequency in advance and just go there and 
the system locked on to the digital signal in question.




Dave Marthouse N2AAM
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