28 Feb 08 06:47, TOM WALKER wrote to ROY WITT:


 RW>> TW> There are even Documented Cases of people hearing WLW form their
 RW>> TW> Tooth Filings back when you were too close to the Tower and they
 RW>> were
 RW>> TW> runing 500,000 Watts transmiter power. Since that time the FCC
 RW>> has
 RW>> TW> placed a power limit of 50,000 watts on AM transmitters, But
 RW>> still
 RW>> TW> those near Broadcast Towers have problems with their Stereo
 RW>> systems
 RW>> TW> unless special measures are taking to prevent it.

 RW>> I've sit mobile on top of Mt Soledad with the two TV station towers
 RW>> and a few AM/FM radio transmitters and have talked to other Hams in
 RW>> the LA area on 2 meters and 440 cm...it all depends on the radio
 RW>> you're using. I was using a Drake UV3, which has a very narrow FM
 RW>> receiver in it. Other radios might not be as good. I had a Motorola
 RW>> Commercial Radio Tech with me at the time and he was very impressed
 RW>> with that radio.

 TW> True some front ends are Far more capable of resisting overloading
 TW> from high powered transmitters in the area.

 TW> BUT what does that have to do with High power transmitters invading
 TW> Stereo Systems???

The two radio receiver designs would be similar, built to receive FM
modulated signals. Note that I said similar and not identical. The amateur
radio's front end would have more resistance to the broadcast
transmitters' high power because it is narrow banded, while the stereo's
frontend is designed for wide band FM broadcast reception. By the same
token, the transmitters on Mt Soledad are all broadcast FM modulated and
of course the TV station's video was too.

                R\%/itt



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