[TenTec] Microphonics/Feedback from Omni-V.9?

[t m]

Is MONitor on?


--- John Pfeifer <jpfeifer at gci.net> wrote:
> Hello all,
> 
> I usually operate with headphones, but this morning turned on my Omni
> V.9 with 
> them unplugged.  As I advanced the AF gain, I started getting low
> frequency 
> feedback.  The only way I could stop it was to turn the AF gain all
> the way 
> down. 
> 
> I was *not* transmitting at the time.  In fact, as an experiment, I
> unplugged 
> everything from the rig except the power supply.  Still got the
> feedback.
> 
> It's almost like something is causing microphonics inside the rig. 
> With the 
> AF gain just barely on, I can start it feeding back with a slight tap
> on the 
> case.
> 
> Any ideas, suggestions?
> 
> Tnx/73,
> 
> John Pfeifer
> KL0WN
> 
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