Quote:
Originally Posted by realjet
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That is a good UHF antenna that will work for ION or PBS if you aim it at them, but not for your VHF-High channels from Chattanooga, real channels 13, 9, and 12.
It is the real channel number (also called physical channel or RF channel) that determines what antenna is needed.
VHF-Low, real channels 2-6
VHF-High, real channels 7-13
UHF, real channels 14-51
The virtual channel number (like 5.1 or 5-1) is a holdover from the analog TV days to maintain the identity of the station, and is what the TV displays. By convention, the virtual channel number is given in the decimal form to keep it from being confused with the real channel number.
I suggest a Stellar Labs 30-2476 VHF antenna aimed at Chattanooga and your CM7777HD preamp. It
might help to tilt the front end of the antenna up a little to catch the signals coming down from the mountain peak. You can mount the preamp a little lower to reach it more easily and play with the high/low gain button.
https://www.newark.com/stellar-labs/...vhf/dp/71Y5462
If you want ION or PBS, try an Antennas Direct DB4E, combined with your 30-2476 using a UVSJ UHF/VHF combiner between the antennas and the preamp.
https://www.amazon.com/Antennas-Dire.../dp/B008PBTPN4
I can't guarantee that this will work, but it is your best chance.
If the antenna is outside, the coax shield should be grounded with a grounding block that is connected to the house electrical system ground with 10 gauge copper wire for electrical safety and to reject interference. For further compliance with the electrical code (NEC), the mast should also be grounded in a similar manner to drain any buildup of static charge which will tend to discourage a strike, but the system will not survive a direct strike.
