Feature:1. This mobile antenna is made of glass fiber reinforced plastic, so it is strong and corrosion resistant.2. Characteristics of high gain and low standing wave bring excellent performance to this car antenna.3. The wide applicability allows this mobile antenna to be used in car walkie talkies or base stations.4. The dual frequency design of this antenna makes it have two frequencies of 144mHz and 430mHz, which is convenient for signal reception.5. Exquisite workmanship guarantees the working accuracy of this signal transmitting and receiving instrument.Specification:Item Type: Mobile Radio AntennaMaterial: FRP FiberModel: NL-550Frequency: 144/430 MHzGain: 3.0dB (144MHz), 5.5dB (430MHz)Maximum Input Power: 200WImpedance: 50V.S.W.R: <1.5Shape: 1/2 (144MHz), 5/8 (430MHz)Connector: PL259Color: WhiteLength: Approx. 53cm/20.9in.Package List:1 x Mobile Antenna