I believe that the combination of added antenna gain and height will increase raw signal strength, which by itself may provide a linear improvement in received SNR at the TV tuner. But the added height also can put the antenna in a location with significantly better signal quality, which may appear as a very significant improvement.
It's hard to wait for the 42XG to show up... 
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If the well is dry and you don't see rain on the horizon, you'll need to dig the hole deeper. (If the antenna can't get the job done, an amp won't fix it.)
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Last edited by GroundUrMast; 24-Jan-2014 at 8:30 PM.
Reason: sp.
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