Phil Allison wrote:
"ruffrecords"


To produce FM there needs to be a non-linearity.


Not really. A nonlinearity produces AM.

Yes really. It is exactly how a mixer works in a receiver. The non
linearity produces sum and difference frequencies.




** Which is characteristic of AM - you jerk.

......... Phil


Both FM and AM have sidebands (sum and difference frequencies). A
non-linearity can produce a number of effects, like harmonics for
example, not just AM.

And if you continue to reply with personal remarks I'll simply ignore you.

Ian