[BC] AM detection in teeth/fillings

[Bob Groome]

Dick

Along these same lines: in Sylvania GA (hope I
have that right) working on a 1 kW AM feeding a
folded Unipole (skirted) AM tower within 10 feet
of the studio in 1970; the monitor speakers would
play the station audio with just wire hooked up
to speaker and the other end of the wire floating
(not hooked up to anything). Why bother buy a
monitor amp? The match to the tower wasn't quite
right; but it was just plain of RF energy too
close to the studio. RF was in everything
(turntable pres, mics, telephone lines, etc.).

They ended up converting the tower to a 1/4
series feed and problem got a lot better.
Bob Groome
--- RichardBJohnson at comcast.net wrote:

> It's usually simpler than that. They may be
> hearing real sound.
> In the "olden" days when we would actually go
> out to the tower(s)
> to make the daily readings, we could hear the
> radio station music
> and speech coming from the tower tuning
> equipment. Mica capacitors
> are slightly piezoelectric and the inductors
> with unsymmetrical fields
> would also demodulate the signal into real
> audio.
>


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