I have two antennas at different heights above the roof line, and one indoors pushed all the way up inside a skylight, at, or slightly above the roof line. All three seem to be of equal signal strength, all three antennas are of different manufacture... I have a lot of nasty squirrels around here, but I don't think they are chewing the cable... YET. Maybe should be thinking of moving more in the skylight, or attic.