NY Times Jr. Cops Out
Fri Sep 24 17:52:31 EDT 2004
>(BTW, why do so many lower-powered non-comms
>utilize vertial antennas only?)
To avoid interference to TV channel 6, inasmuch as most TV signals in the
US are H-pol (though an increasing number have gone circular) and all
outdoor receiving antennas are H-pol.
One trick used by some DXers in search of signals via E-skip is to tweak
the mounting of a Yagi antenna so it's vertically polarized. The skip
scrambles the polarity of the received signal anyway, and so using a V-pol
receive antenna reduces the signal from H-pol locals while still grabbing
the randomly-polarized skip signals.
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