> An update with my problems with cable TV interference.
>
> 12:00 PM Receiving cable channel 38 at 4.821 MHz
> 4:20 PM Receiving cable channel 11 at 4,831 MHz
David,
TV sets use 4.5MHz IF and some subcarrier frequencies in
that range and higher as an FM (audio) IF. I can hear the
sound carrier from what I suspect is the composite video
cable connects between my TV set and DVD/VCR if I pull the
plug back and get a bad ground on the shield. The color
burst is around 3.58, and the color IF extends up to 4.08.
You might check and see if when you are having the FM sound
you are also hearing a strong buzzing carrier around 3.58MHz
I'm only guessing but I suspect you have a similar problem
with a neighbor, not with the CATV company. I would be
especially suspicous of a TV set or VCR system since you
report the channel changes and sometimes disappears.
73 Tom
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