[Xastir] Almost there - but no TX

[Rick Green]

On Mon, 20 Aug 2012, qrv at kd4e.com wrote:

> Rick,
>
> 	I have triple-checked the rig to TNC (OT3m) cable.
>
> 	There is no audio out connector on the OT3m, only DB9
> and USB.
   ...and the DB9 connector has a pin designated 'TX Audio out', right?
   Have you an oscilloscope?  Or an audio signal tracer? Can you somehow 
sample the signal at this pin?  You're saying you're getting no transmit 
audio, just carrier.  I highly doubt that the TNC output can be turned 
down to absolute zero, so I would expect to see at least a little audio 
signal there.
   If there is truly no detectable signal coming from the TNC, then you 
probably have a hardware issue.  If the signal is there, but weak, then 
you still may have a hardware problem, but you won't know for sure until 
you manage to run the configuration program and see how much additional 
headroom you have in the TNC to work with.

-- 
Rick Green

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
                                   -Benjamin Franklin

"As for our common defense, we reject as false the choice between our
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                                -President Barack Obama 20 Jan 2009