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Old 18-Feb-2016, 1:45 AM   #2
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,747
Welcome, Waaafles:

Thanks for the tvfool report.
Quote:
I think this will be an easy one.
I hope so, but there a few problems to be solved; you might have to do some experiments to get what you want.

CFPL, only 0.5 mi away, is extremely strong and might cause overload. The indoor antenna that you try, like one that sticks to the window, must not have an amplifier. The red highlight background for the -11.3 dBm signal power is an overload warning. You might even need an attenuator to make all signals weaker.

You also have some strong local FM signals that might interfere with TV reception.
http://www.fmfool.com/modeling/tmp/1...f/Radar-FM.png

I have never seen FM signals that strong before.

CFPL-FM has a signal strength of +10.6 dBm.

This means that you will probably be limited to receiving 48, 20 ,14, and 18 that are 4.4 and 4.3 miles away.

You can insert a UVSJ (common and high ports) between the antenna and the TV which will block FM signals and VHF-High signals like CFPL on real channel 10. It might even be necessary to use two UVSJs in series because of your extremely strong FM transmitters less than 1 mile away.

Also you should ground the coax with a grounding block connected to the house electrical system ground. If you don't do that the very strong FM and CFPL signals can get directly into the TV cabinet and ruin your reception of the four channels you want from 4 miles away.

If you are able to get those four channels, there might be a way to add CFPL with a separate antenna, an attenuator, and a HLSJ, connected to the low port of the UVSJ.
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Last edited by rabbit73; 18-Feb-2016 at 11:41 AM.
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