Dual Band Car Radio Walkie Talkie Antenna VHF/UHF 100W 144/430MHz High Gain NMO VHF/UHF Aerial Replacement Auto Accessories. Feature: Mobile radio antenna frequency range: 144/430MHz (VHF: 136-174MHz; UHF: 400-470MHz); Electrical specification: VSWR: less than or equal to 1.5; Gain: 144MHz (3.0dBi), 430MHz (5.0dBi); Maximum power input: 100W; Impedance: 50 ohms; Polarization: vertical; Radiation: Omni; Mechanical specification: height: 20.3inch/51.5cm; Antenna connector: NMO. Note: NMO mobile transceiver antenna does not need tuning. Material: The whip rod is made of metal. (NMO magnetic base is not included). Function: 3.0/5.0dBi high gain for better TX and RX. Application: Dual band NMO antenna is suitable for VHF UHF Motorola Kenwood dotcom Vertex Blackbox HYT Hytera mobile radio.