Join Date: Jan 2010
Location: Location, Location
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I'm less than 2 miles from Madison's two TV towers, and still benefit from an amplifier. What you say? While I'm 2 miles away horizontally, the antennas are more than 1/4 mile above my head. Even with negative beam tilt, I'm still off-axis from their narrow vertical gain lobe. What's worse, FM radio stations mounted lower on the same towers, and atop much lower towers all close to my neighborhood puts a LOT of FM radio band energy into my passive omni. I put an FM trap before the amp, and switch on the built-in FM trap in the amp. Between the filters and using all 4 outputs, turning the gain all the way up seems to give the best results. I see the same signal levels no matter how I set the gain, but the BER is less with more gain. Go figure.
I'd rather use my own antenna amplifier rather than buy an amplified antenna. With the latter there's no guarantee that the amp circuit is any good, and not much to do if it sucks. Some you can't even turn off!
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