In a message dated 1/22/01 5:38:49 PM Eastern Standard Time, [email protected]
writes:
<< If you tune an FM radio to a stereo station, there is a pilot signal at 19
kHz that is used to regenerate the carrier used for the left - right
separation. At least this is true for Europe, don't know for the US. >>
It is the same pilot signal here. However, the frequency accuracy leaves
something to be desired. The tolerance in the U.S. is plus-or-minus 2Hz.
Most stations do much better than that, but I'm not sure I would trust it as
a reference. For most broadcasters, the stereo pilot is one of those "out of
sight, out of mind" things.
73,
John KD4IDY
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