On Mon, 9 Jun 1997, Ken Anderson wrote:
> Is there a station engineer or otherwise knowledgeable person
> on FCC standards for location of Commercial FM stations.
As a soon to be former owner/operator of over 7 commercial FM stations I
am somewhat knowledgeable, depending on with whom you ask.
> The station in question is a Class A at 107.5 MHz (second harmonic is
> in Ch13 the local CBS affiliate!) running 6KW to an Omni antenna at
> 60 feet above local terrain. Is this a normal situation for such stations?
I have operated FM stations from 410 watts to 100kw, from 92.5 mHz to
106.9 mHz and have never had a single TVI complaint in over 19 years in
the business. If there IS a real TVI problem, it is probably the fault
of the FM broadcaster.
> I've searched the FCC web sites and can't find any guidelines on
> locating such antennas/stations within residential areas.
As far as I know, there aren't any. But speaking from practical
experience, a properly engineered and installed Class A FM station could
operate in a residential environment without any TVI problems.
Hint:
Call the Chief Engineer at the station in question and ask him if the
"harmonic filter" has been installed properly or has it been omitted
for "economic reasons".
GL!
-Larry K4AB
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