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Old 28-Oct-2015, 12:21 AM   #5
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,753
Quote:
Now that it's starting to cool off, I've noticed it isn't happening like it used to. My father in law said it could be Troposheric Propagation.
Your father in law might be correct. Tropospheric Propagation and Temperature Inversion are closely related:
https://www.google.com/?gws_rd=ssl#q...ect+tv+signals
Quote:
If so, how do we get around it?
I don't know how to get around it anymore than I know how to stop the rain, but there might be other factors that are affecting your reception.

The first one that I notice is that there is a very strong FM transmitter, KOFM, in Enid that might be overloading your 30 dB preamp. See attachment 1.

Quote:
It's split four ways, so roughly 100ft total to each outlet.
Is the reception any better if you feed just one TV without the splitter?

Are there any trees or other buildings in the signal path?

Is the antenna aimed at 153 degrees magnetic?

There isn't much signal left from Fox by the time it reaches your antenna:



and the curvature of the earth causes the signal to skim the terrain that has been heated by the sun:



1Edge and 2Edge signals aren't as stable as LOS signals.
Attached Images
File Type: jpg Studebaker839TVF FM est.JPG (107.7 KB, 1133 views)
File Type: jpg Studebaker839TVFcovKOKH.JPG (115.6 KB, 1557 views)
File Type: jpg Studebaker839TVFp2KOKH.JPG (119.5 KB, 1525 views)
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Last edited by rabbit73; 28-Oct-2015 at 1:47 AM.
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