On Mon, 10 Jun 2002, Alan B. Pearce wrote:

>>If you reference me to a domestic (consumer type) FM
>>receiver model with AGC, I would like to know so I can
>>change my statement as to never seeing an FM AGC circuit.
>
>Hmm, well I am well out of RF stuff these days, so cannot do this, and it is
>a fair while (as in a couple of decades) since I had anything to do with it.
>Things will have changed significantly in that time.

I don't have a reference to a type but I have two tuner blocks scrapped a
long time ago from higher end FM receivers that have AGC inputs on the
first stage. They *may* have been used with just a switch (dx/local). BUT
the books say that a high end FM strip will have AGC to drive the tuner
(and allow listening to adjacent strong stations without IM), the S meter,
the squelch mute system and AFC defeat during tuning, to defeat stereo and
to switch to lower bandwidth (in IF) with low signal. I suspect that some
higher end FM receiver components (the kind that cost ~$1000++) may
actually do some or all of this.

Peter

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