OUTDOOR 4 BAY HDTV DIGITAL ANTENNA with Super Strong Design ANT-2087   Product Features: Strong performance across (channels 2-69) best for UHF spectrum (21-69) Efficient design allows tremendous gain in a compact size Strong high performance reflector design in order get more signal in same size Designed to resist extreme wind loading Works great in attics Fits easily & high gain can help overcome loss from roofing materials. All weather Balun included Great within 70 miles or more from transmitters Intended for people at great distances from the transmitters Excellent reception for digital terrestrial Suitable for HDTV of various television standards, such as American ATSC, European DVB, etc. Super strong design suitable for all kind the weather   Specifications: No. of Elements: 4 Frequency Range : 470-862MHz Channels: Ch. 21-69 Antenna Gain: 10-13dB Beam Width H/V: H 60/ V32 Front-back Ratio: 22 dB Impedance: 75Ω Antenna Length: 840mm