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Old 6-Jan-2012, 8:07 PM   #3
lkruper
Junior Member
 
Join Date: Jan 2012
Posts: 13
Quote:
Originally Posted by ADTech View Post
Unfortunately, the built-in "signal meters" that display in percentages rarely have a known correlation to actual received signal powers.
I called Sony and that is what they said too. Then I went home and looked at the rest of the diagnostics. They also report SNR in dB and so I recorded them:



Callsign, NM (dB), Sony SNR dB
KABC-TV, 35.8, 28.6
KTTV, 35.7, 31
KCOP-TV, 36.8, 26.5
KCAL-DT, 33.9, 24.3
KTLA-TV, 26.8, 14
KDOC-DT, 10.7, 20.1


For the stronger signals it looks I have a loss of 5-10 dB from the TV Fool estimate to my TV. We would need to add the gain of my Radio Shack antenna which is probably not as good as the more modern antennas as well. But if it is 10dB that would make a loss of 20dB from my attic down to the TV.

Does that seem reasonable? Does any of this make sense?

Also, one channel that is intermittent (KTLA) shows a SNR of 14dB but my tuner cannot get a signal today.

I guess in the final analysis I still need to get the most powerful UHF antenna possible. The channel that I really need is Real 43 (Virt 2.1) because this is the channel Rovi delivers it channel guide information through.
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