[1000mp] Sticky relay? - I suggest not

Mon, 3 Feb 2003 07:23:44 -0000

Interesting---yours healed itself, mine got sick again.

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of [email protected]
> Sent: Sunday, February 02, 2003 14:55
> To: [email protected]
> Subject: Re: [1000mp] Sticky relay? - I suggest not
> 
> 
> Barry, N1EU wrote:
> 
> "There was a thread on this subject a while back, and it was termed the
> "deaf  receive" problem.  Occasionally in contests while running
> (cq'ing), the receiver seems deaf after ending a xmsn.  The receiver
> doesn't go totally deaf, just loses 20+dB of gain.  Often sending a dit
> will fix the problem.  Without a lot of hard data as basis, I'd like to
> suggest that this is a receiver gain control issue and not a relay
> problem."
> ==========
> I had the same problem with my MP.  A dit would correct it on CW and a
> tap of the PTT switch would correct it on SSB.  Hitting the front panel
> MOX button would also cure it.
> 
> However mine was not a receiver gain problem.  It also would fix itself
> if I tapped the front panel ANT A/B pushbutton twice.  This did not
> change the radio's receive/transmit state and suggested that the problem
> was a dirty antenna relay contact.
> 
> Over the course of time, this problem occurred less frequently.  I have
> not had it recur for the last two years or so.  It appears that the dirty
> relay contacts (if that's what it was) gradually cleaned themselves after
> thousands of operations.
> 
> 73, de Earl, K6SE
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