[TenTec] Orion 1.364 and up, distorted transmit audio

[Grant Youngman]

Gents ...

With 1.364 or 1.365 in my Orion, there is a distortion product being 
transmitted in audio modes.  1.363 is clean as whistle.  The 
distortion can be heard in MONITOR as a high frequency "scratch" 
on the audio.  It may not be apparent to the listener on SSB 
because of narrow receive bandwidths.  However it is very apparent 
on AM, showing up on a separate monitor receiver sounding exactly 
the way it sounds on the MONITOR -- which is what is expected.

I've verified it is not related to specific microphones, inputs 
(MIC/AUX), external speech processing stuff, RF, etc.  It is directly 
related to something in the change from 1.363 to 1.364.

If this affects your Orion, you may want to consider sticking with 
1.363 if you don't need the features added in the later releases until 
T-T has had a chance to look at the issue.  There was a similar 
problem that only affected the AM mode back around release 
1.328/1.329 that was subsequently fixed.  But this time it seems to 
affect all voice modes equally.

Grant/NQ5T