Ah! This takes me back to when I used an FRG-7 sw rcvr in the AM mode
with a 2 meter converter to listen to 2 meter FM via slope detection!
It worked quite well!
Steve, N4EY
Dr. Gerald N. Johnson, P.E. wrote:
>
> Tune it to ten dB down the slope of a filter, look at the output without
> AGC. The filter slope will make a frequency discriminator.
>
> Or look at with nearly zero beat, you should be able to see the change
> in frequency if the beat frequency is low enough.
>
> 73, Jerry, K0CQ
>
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