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I have to think that you are swamping that preamp with signal: you have too many strong local stations to be using a Titan 7777: that preamp is really meant for weak signal areas.
Also, you didn't mention using a rotator: I have to think that you would want one to fine-tune the system: sometimes aiming in a slightly different direction will help your reception by quite a bit.
if you are going to try bypassing the preamp and splitter to determine fault, you will need to bypass the preamp on the roof, not just unplug the power supply,which will attenuate all of your TV signals.
Last edited by Tigerbangs; 16-Nov-2010 at 6:00 PM.
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