[TenTec] Intermittent loss of sensitivity on Orion 566 upon PTT switching

[Gary Follett]

I wold say you are 99% likely to correct the problem with this relay.

Good diagnostic, if you ask me...

Gary

Sent from my iPad

> On May 19, 2016, at 6:05 PM, Mike Schatzberg <cherokeehillfarm at earthlink.net> wrote:
> 
> Hello Ten Tec Fans:
> 
> My normally reliable O2, sometimes returns from transmit to receive with a lower sensitivity.  Switching back to transmit, and again to receive, the normal sensitivity returns.
> 
> It appears as if I have a dirty contact on a relay, and have to exercise it for better contact.
> 
> Looking at the schematics, I see there is a reed relay, K6, which appears to perhaps be the most likely candidate to be at fault.  This relay is on the A1 board, the low pass filter board.
> 
> Before I take everything apart, and start looking (there are no pictorials for component placement information), has anyone had a similar problem with their O2?  Any information as to board location, and degree of difficulty in removing this relay, if indeed it was your issue, would be appreciated.
> 
> I guess since this radio is circa 2006, and I use QSK switching, and always use VOX, I can’t be too surprised that this high speed relay might need replacement by now.
> 
> Thank you for any possible input.
> 
> 73,
> 
> Mike
> W2AJI
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