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Old 17-Jul-2015, 6:22 PM   #6
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,753
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I am definitely willing to experiment.
Good; I have a few ideas that might be worth trying. I'll start with the easy inexpensive ones first.
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have been fiddling with various electronics
I have been doing antenna experiments since I was 8, when I built my first crystal set radio. I have been a ham radio operator since the early '50s, and built many ham antennas, especially for mobile DX operation. My call signs:
W4...
ex-W2...
ex-DL4.. when is was in the US Army in Germany

I worked with electronic equipment for the US Government. Since I retired I have helped posters with their reception problems on four forums for the past 7 years, and I'm still learning.
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I am currently pulling in WFLD with minor noise but no other channels in that direction.....I had a hard time with noise at my previous home that I never really solved it
Can you tell me what you mean by noise; is it electrical interference from power line noise or something else?
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I would love to just filter that channel out.....I never really solved it was about 5 miles from WWTO.
OK, let's start with that, since it is your biggest problem. What I want you to do is to insert, using the high and common ports, 1 or 2 UVSJs between the C4 and the input of the preamp. This will attenuate WWTO on real channel 10, and 4, 6, and 12 which will block CBS for the test. I want to know if limiting the C4 to UHF only (real channels 14-51) will work. The UVSJs will also block FM interference for the test.
http://www.solidsignal.com/pview.asp?p=zuvsj
http://www.3starinc.com/uvsj_uhf_vhf...or_joiner.html
http://comingsoon.radioshack.com/vhf...l#.ValMzjjbJLM very slow link
http://mjsales.net/products/tru-spec...ant=1198505857
http://www.nsccom.com/browseproducts/UVSJ.html

C4 > UVSJ (1 or 2) > preamp > coax > power inserter > TV

The reason why I think 2 UVSJs might be necessary is because WWTO is 73.0 dB stronger than WFLD Fox, your strongest Chicago channel and 82.4 dB stronger than WCPX Ion, your weakest Chicago channel. The UVSJ is rated at ~25 dB attenuation, they usually do better. It doesn't need to completely eliminate WWTO, just attenuate it.
http://www.hollandelectronics.com/ca...-Diplexers.pdf

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If there is any websites you could give for more research please let me know.
I can give you links for further information if you tell me the topic you are interested in. I can also bore you with several long posts about overload, from what I have learned.
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I now live about 71 miles outside Chicago.
The curvature of the earth starts to affect TV signals at about 70 miles. You can see the black arc, below the gray, at the bottom of the transmitter profile; see attachment. If you click on a callsign in your tvfool report, it will show you the profile. The transmitter is at the left end, your location is at the right.
Attached Images
File Type: jpg crickey7115TVFprof.JPG (68.6 KB, 1609 views)
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Last edited by rabbit73; 18-Jul-2015 at 3:26 PM.
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