[1000mp] Loss of Rx upon release of PTT

[Pete Smith]

You may have a sticky relay in the T/R line, or maybe a noisy control in 
the shift or width areas.  You might try weorking those controls a lot 
(relatively) and see if it settles down.

73, Pete N4ZR

At 03:57 PM 2/28/2005, you wrote:

>My 1000MP has been in storage for five years.  Occasionally, when the PTT is
>released no signals are heard but there is background hiss.  A VERY slight
>movement of either the WIDTH or SHIFT controls will restore operation as well
>as a tap of the PTT.  Moving the WIDTH/SHIFT controls off the center detent
>does NOT solve the problem suggesting the pots are not dirty.  Is there a 
>relay
>in the system bypassing these controls allowing full bandwidth on transmit? If
>so, where is this relay and is this idea a valid one?  A possibility might be
>the main T/R relay but why then is operation restored by slight movement 
>of the
>WIDTH/SHIFT ???      Cliff Buttschardt    K7RR at arrl.net
>
>
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