Have a very strong signal from 145.520 to 145.540, it has some "buzz" noise at
the edges and also there is a low level audio signal that corresponds to
channel 23 on Cable TV. Looked at Channel 23 in relation to amateur radio on
the ARRL web site. Audio carrier is listed at 221.75 and video at 217.25. Have
taken my HT around the building and used a home made beam, but the signal seems
to be radiating from every place in the building. The building is a thirteen
story high rise, it has a an open area in the center of the building from 1st
floor to the roof, 50 feet by 50 foot square. The only place I do not receive
the signal is in one stairwell or if I leave the building. As soon as I go to
the lobby which is sealed from the inside by a space of about ten feet between
lobby and interior of the building, then the signal disappears and also have
walked outside the building, the signal does not leak out. Have been on every
floor, even taking the antenna off the HT there is
some signal on every floor. Also at times there is a weak signal on 145.500,
maybe from the same source. The interference sometimes causes weak stations on
the local SSTV net and makes the image look terrible. Any ideas? What could
be mixing with channel 23 to end up on 145.520 to 145.540?
Would make a good place to "shoot" internet Wi-Fi down from 13th floor, HI.
Jerry - K0HZI
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