[BC] FM Frequency Measurements...

[Ron Youvan]

> The nature of a broadcast FM exciter is that it is not crystal 
> controlled but crystal (or whatever) referenced.  This is pretty much by 
> necessity.  If it were locked to a reference as hard as if it were 
> actually trying to modulate a crystal, you'd be hard pressed to get the 
> deviation without multiplying nearly a thousand times, like they did in 
> the day's of yor.

   In (a few cases) the days of yore, a crystal controlled carrier was phase
modulated and then the frequency was multiplied a great number of times to
reach the final output frequency.  (pre stereo)
-- 
    Ron  KA4INM - My Florida property tax is 7 times what it was
                  3 years ago with no change on my part. OUCH!