Quote:
Originally Posted by ADTech
....the root of your problem that's right in front of you - that million watt PBS station straight in the line of sight less than 7 miles dead ahead. It's causing almost everything to overload.
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A second trick to reduce interference is to stack two identical antennas side by side to place a null on the interfering station. In your case, two 91XG antennas stacked 38" apart and carefully aimed would null channel 23 by at least 15 db.
Look here for the theory:
http://www.hdtvprimer.com/antennas/ganging.html
I've done this myself many times, once with support from ADTech.