[1000mp] Re: MP (not so) Fast AGC Recovery

Barry N1EU [email protected]
Mon, 05 Aug 2002 21:28:41 -0400


As a result of a few conversations I've had offline, I re-ran the AGC 
break-in recovery tests on the MP while varying the underlying received 
signal from S1 to S9.  With a strong received signal, the MP recovers quite 
quickly (20msec).  But when the received signal is S1, the MP takes a full 
second for its audio to recover after cw xmsn.  The updated waveforms are on 
the web page at http://www.albany.net/~bg/Yaesu/mpagc.htm

This is starting to shed some light on several troubling instances while 
running in contests where I could hear weak signals come up in strength 
slowly after my xmsn.

In ssb mode, the MP audio seems to turn around uniformly fast, independent 
of received signals or fast/slow agc.

73,
Barry N1EU

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