From: jacobfenton on
>> The interesting thing I am seeing is that if I sweep the FM carrier
>> modulation) away from 3MHz, and I look at the output from the Goertzel
>> detector, the tone magnitude starts to drop off (which is expected) and
>> goes aways but then starts to come back again (with very strong
>> and continues this pattern (sine wave like).
>The KEY piece of info that is missing is.....
>HOW FAR away from 3 MHz are you "sweeping" the FM carrier to see this
I start seeing the effect at 50kHz away from 3MHz.