[1000mp] Bad Antenna Relay?

[Barry N1EU]

"The return of my problem suggests either:
     the offending relay was replaced with an equally failure-prone unit.
     rather than self-burnishing, mine have partially self-destructed."

Or . . .  that the relay wasn't the root of the problem in the first place  
;-)


"Don't think it is a built in AGC problem."

I don't think the deaf rx problem is an AGC problem, but perhaps something 
in the electronics that control rf/if gain.  For example, Yaesu is using 
microprocessor/digital control to set the gain in some stages and perhaps 
this or something in the control signal path goes south at times.

Someone is most likely to notice the deaf rx problem if they are an active 
contester and spend a large percentage of the time "running", ie ceaselessly 
cq'ing and listening for callers several times a minute.  This cycle might 
be repeated more than 10,000 times over a weekend.  And even then it might 
not happen at all during a 48 hour contest, or it might happen several 
times.  Also, it takes some astuteness - it is easy to think that it was QSB 
or off-channel interference causing the loss of gain and not realize your 
receiver went momentarily deaf for no good reason.

73,
Barry N1EU

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