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Old July 17th 03, 11:48 PM
Doug McDonald
 
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John Dyson wrote:
eceive.

It is amazing for a 19kW transmitter, that the signal is easy to
receive. However, the relatively lower frequency and high true
gain of simple dipoles at the Ch9 frequency seems to help. (I
know that you know this, but others might not realize: It
is easy to be seduced by the 'high gain' of UHF antenna designs,
but non-RF types need to understand that the gain is specified
relative to an isotopic or dipole -- and at high frequencies, the
gathering capability of such antennas is significantly reduced,
because of the smaller area.)

Ch8/Ch9 is (by far) the best source for HDTV in Indy, but the
other stations are getting better.


It's not the best for us in the far field, however.

This is because its extremely easy for us to get an
antenna with huge gain on the UHF channels, one that
is about the same size as a Ch. 9 dipole. To get the
same gain with Ch. 9 requires the same design antenna,
hence a truly gigantic one. If it were 1 MW or even 316 kW,
it would be easy.

Doug McDonald