I have a nice Model 544 that has developed a transmit/receive changeover
problem that I need some assistance diagnosing.
All was working FB in QSO on 75m LSB when I unkeyed the mic and the
S-meter went near full scale with RX sigs very muted. Powering off/on
the radio fixed the problem until I keyed up again, and then the problem
reoccurred.
I swapped out the main T/R reed relay with a new one from Ten-Tec. I
also DeOxit'ed the T/R-RX antenna switch on the rear (thanks Ed/w4wvw).
Yet the problem persists on an intermittent basis.
73,
Adam N.
N4EKV
Lafayette, CA
www.n4ekv.com
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