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WebTNP 701S Radio Antenna - SMA Female 8" Inch Whip VHF/UHF (144/430Mhz) High Gain Antenna for BaoFeng, Pofung, Kenwood, Wouxun, Yaesu Compatible Two-Way Ham … WebThe helical antenna is a unidirectional antenna that combines high gain with a wide frequency range. It has a somewhat higher gain than the traditional log periodic or … how are infrared waves used in everyday life
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