Hi all. Here is the link to my signal analysis results:
http://www.tvfool.com/?option=com_wr...b97d885d913fcb
I'm interested in picking up CBS, Fox, ABC, PBS, and NBC. I installed an RCA ANT751R in my attic and have one coax cable going direct from the antenna to my tv. No splitters, no pre-amps, nothing else.
My TV is a Sony KDL-55W900A. In the Signal Diagnostics menu on the sony, every channel comes in perfect with an SNR (dB) between 28-34. ABC comes in the weakest but still perfect.
The problem lies with CBS which is KFDA channel 10. As I said it comes in perfectly, but then after a while the signal strength drops and starts to fluctuate between 23-25 and a lot of errors crop up. The audio drops out and the picture pixelates. This might start to happen after 10 minutes of watching or several hours and it only happens on CBS.
If I change the channel and then tune back to CBS the signal comes back strong at 32-34 but then after a few minutes or even hours it will drop down again.
I'm new to reception issues and antenna problems so this has baffled me. It sounds like it could be multipath interference especially because the antenna is in my attic. But I'm confused that I can solve the problem at least temporarily just by tuning to a different channel and then retuning back to CBS. Could that indicate that the tuner on my TV may be the culprit?
I've spent hours trying to adjust the antenna and could never get rid of this problem. The issue with adjusting the antenna is that CBS will come in great after each adjustment only to fall back down after a few hours of watching. I'm just looking for some advice or any tips to try to solve this issue once and for all.
Thank you,
Kareem