I've been through the ringer on this antenna thing and can't quite get right. I have 2 antennas, 1 outside on the roof w 100 ft of cable leading to an a/b switch and 1 inside going to the same a/b switch both have a little amplifier they came w attached. Sometimes I can get 60 pct of the available channels but it fluctuates. I know which direction to turn the antennas. I have read about attenuators but my friend says slightly turning the antennas is attenuation in its own right. I have found that throwing money at it isn't the answer. Anyone have any ideas that could help? Both bought antennas work about as well as an old pair of rabbit ears I have. There are many trees in the neighborhood I live in.