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Re: [TenTec] Orion distorted audio in monitor

To: tentec@contesting.com
Subject: Re: [TenTec] Orion distorted audio in monitor
From: "Grant Youngman" <nq5t@comcast.net>
Reply-to: tentec@contesting.com
Date: Mon, 27 Oct 2003 23:18:58 -0600
List-post: <mailto:tentec@contesting.com>
> I have the same problem Grant reports with the 'distorted audio' or
> 'HISS' sound created in the audio monitoring circuit.  ...snip....
> Must be something in ver 1.363 also since thats what I was using.

Contrary to my earlier report, I too have now found the issue in 
1.363.  I had a note from T-T that they were not able to duplicate the 
problem in 1.365, but sent more notes today.  Also made some .wav 
recordings of the radio with and without the distortion and sent to 
Gary tonight.

As I have time later this week I want to try going back one rev level 
at a time to attempt to see where the distortion first shows up.  The 
difference between the clean and distorted audio is very dramatic, 
and shows up reasonably well in the recordings I made.

I have not yet been able to lock down specific control patterns that 
cause it or make it go away that I'm willing to hang my hat on, and I 
have spent virtually the entire day fiddling with it, going back and 
forth between 1.363 and 1.365.  I'm about to wear out my power 
switch.  Sort of an unofficial day off -- easy since my office is only 10 
feet from the radio room (and the boss lady is in antoher time zone) 
:-)

It APPEARS .. (and that's the best I'm willing to say now) that with 
1.365 a power cycle will cause it to appear and a VFO B LCK rest 
will cause it to return to good audio.  But who wants to do a 
reset-everything every time you turn on the radio?

In 1.363, it also APPEARS to be the same, although it has shown 
up unexpectedly under other conditions.  Sometimes it has taken 
two power cycles, and then a few seconds of speech before the 
distortion shows up.  It's very inconsistent and hard to nail down.  
But 1.365 is a bit easier since it's almost always there.

Of course, it could just be my old (March) radio, and YMMV ...

Grant/NQ5T

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