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Old 10-Jul-2011, 8:07 AM   #4
GroundUrMast
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Join Date: Oct 2010
Location: Greater Seattle Area
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JC is on track with his questions / test suggestions. It sounds like antennas may be interconnected in ways that allow for undesirable interactions... It will be helpful to know each antennas individual performance.

WNJB, real channel 8 is adjacent to WABC, real channel 7 which is about 1000 times (30 dB) more powerful at your location. Adjacent channel interference from just 10° off the same azimuth is going to be very challenging to overcome with such a power differential.

WLIW should be 'do-able'... with a moderate gain UHF aimed at it (95° mag.).

If the amps are returnable, go ahead try them... I expect they will make matters worse though, due to noise and inter-modulation distortion produced inside the amplifier circuitry. Your TVFR does not indicate a need for an amplifier... It indicates against one due to the multitude of powerful signals which certainly includes many FM stations.
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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)

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Last edited by GroundUrMast; 10-Jul-2011 at 8:16 AM.
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