[BC] Is overprocessing illegal?

[Kevin Tekel]

Jerry Mathis wrote:
> The FM stereo system now in use was not designed to pass audio above
> about 15 kHz. So just filter it all out and be done with it.

I do understand how putting unfiltered audio into an FM Stereo generator
will produce aliasing problems.  However, in my question I was talking
about a monaural FM station, at which no MPX generator is in use.  In that
case, it seems that as long as the 19 kHz pilot tone region is protected
(as the FCC rules require), then unfiltered audio above and below 19 kHz
would be of no consequence to the receiver.



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