HDTV/DTV/UHF Outdoor Television Antenna Triple boom for exceptional signal gain Exclusive snap open design for greatly reduced installation time Heavy duty construction with rugged mast clamps and associated hardware Nominal range: 40 ~ 50 miles Frequency range: 460 ~ 862Mhz (covers all digital channels) Maximum gain: 13dB Maximum front/back ratio: 25dB Impedance: 75ohm, female F connector Overall length: 24