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Old 2-Sep-2011, 8:35 PM   #4
TheEmrys
Junior Member
 
Join Date: Sep 2011
Posts: 20
Quote:
Originally Posted by GroundUrMast View Post
Rule of thumb #1: If it's not broke, don't fix it.
Are you having problems with the picture pixelating or intermittent loss of signal?.
It occaisionally happens. And there are a few channels that were picked up, but just get a black screen except late at night (after midnight).

Quote:
Originally Posted by GroundUrMast View Post
Rule of thumb #2: One amplifier can be too many, two amplifiers are too many.
I would only replace the amp. The amp is completely seperate, and its in my basement (where my coax drop is) before my splitter. And the Terk HDTVO antenna has an external, 12 dB preamp.

Quote:
Originally Posted by GroundUrMast View Post
Rule of thumb #3: Antenna gain is better than amplifier gain.
Antenna gain will deliver more signal power and... improve the noise margin (one measure of signal quality). Amplifier gain also increases signal power, but at the expense of reducing the noise margin.
I get what your saying. The only thing I'm unclear on is the noise margin. Can you explain a bit? Is it that it introduces a bit of interferences in the copper because of the amplification and that it then degrades the signal?

So, I guess I am better off leaving it as-is? A bigger pre-amp wouldn't clear up my minor issues? For what I've got going on, a bigger antenna isn't very appealling (to my wife). Our current antenna is small and its sitting on the back side of the house, out of sight.

If I'm better off as-is, I'll just delete the channels that aren't coming in and call it good.
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