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You mentioned a four way splitter and then said something about two tv's. If you replaced the four way with a two way splitter you'd save 3 or 4 dB to each TV. That might help some but the signal bouncing around in the attic confusing the TV tuners is probably why you see improvement with some stations and problems with others when you move the antenna around. Some tuners handle multipath better than others and that might explain why one TV receives more channels.
You've got a beautiful tvfool report! Lot's of signal strength and all stations in one direction. You do not need an amplifier. A pre amp should be used to overcome signal loss over long coax runs. Amplifying a crappy signal is just more of a bad thing.
Just to see what's actually possible, go to the south side of your house, clamp the antenna to a step ladder, point it south, run the coax thru the window directly to a TV.
Last edited by phone man; 31-Dec-2012 at 7:49 PM.
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