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Old 19-Jan-2016, 2:28 PM   #36
ADTech
Antennas Direct Tech Supp
 
Join Date: Jan 2010
Posts: 2,942
Quote:
Assuming that channel 33 is real channel 3, then you will need to point your VHF element at 257 mag. and channel 11 will need the VHF pointed at 253 mag. If you have it pointed the same as your UHF at 21 mag then it's aimed the wrong way.

You might try to split the difference, but, channel 33, (3) has a NM value of only 1.8 and it's a 2 edge so you may never get it without a large old school VHF antenna. (If then.)
Real channel 33 on his plot is WPXG, the ION affiliate from Concord, NH, virtual channel 21. It's off the back of the C4V and it would not be expected to be received at those forecasted levels off the back of any antenna than has any F/B ratio greater than 0.

WORK-LP is presumably still operating under their STA at a measly 58 watts ERP while they wait out the FCC's spectrum actions. That meager signal will never make it to this location.

Quote:
My FM traps and Preamp are located indoors 30 feet from the antenna
You would improve your system noise margin by at least 2 dB if you put the amp immediately at the antenna as is customary.
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