Was looking at upgrading my elderly mom's HD tv (minus tuner) to digital and placed old rabbit ears connected to a digital HD set top box in south facing bay window ground floor, all T.O. channels came in strong and even chn 23.

Mounted a wall mounted pipe to reach above roof, added a fancy amplified gain "yagi" with built-in rotator, rabbit ears worked better, lost two T.O. channels and chn 23.

Checked design of this antenna, basic low band folded dipoles, high band fold open dipole plus gain ampilfier, directors are plastic and do nothing, no reflector and no f/b ratio effect.

In my opinion stay away from these antennas, with descriptions such as "MOTORIZED VHF UHF OUTDOOR HDTV HD ROTOR TV HDTV ANTENNA selling for $48 or so on various mass selling sites.

Will install a 4-bay bow tie antenna and see how it works.