[BC] Noisy Audio Chain

[DHultsman5@aol.com]

In a message dated 12/3/2006 6:46:58 PM Central Standard Time, 
mwam at box311.net writes:
Quite often WWII 720 leaves their carrier on all night. There 
is so much high frequency noise on the signal that I can hear 
it eight to ten kHz on either side of center. It sounds like 
there is a blank tape playing. There is also some sixty and I 
think one hundred twenty Hz hum on the signal.
If this is an AM station as I recall they have to ID the carrier once per 
hour.  FM's at one time were granted a wavier on the ID rules if they ran 
subcarriers 24 hours and main programming signed off the air.

Dave