144MHz/430Mhz(136-174Mhz&400-470Mhz) Magnetic Base Antenna work for SO239 VHF&UHF mobile radio, Radio Scanner, Ham Radio Transceiver, Handheld & Amateur Radio Equipment. Maximum Power Input-watts:50 W; Gain: 2.15dBi/3.5dBi. Omni-Directional, 43.5cm(17.12inches) Stainless Steel Antenna. 3.5inch Magnetic Base ( Need the Metal Ground Plane), the magnetic base Easy to install, plug and play installation. 144/430Mhz indoor and ourdoor Low-profile whip Antenna work for SO239 Motorola Kenwood Icom Vertex Blackbox HYT Hytera Baofeng Midland etc Two-Way Radio, Uniden Base/Mobile Scanner. HYS antennas are individually Tested to insure proper compatibility with your Radio and Frequencies! HYS antennas are dependable, accurate, reliable and affordable. ELECTRICAL SPECIFICATIONS

FrequencyRange:144MHz/430Mhz(136-174Mhz&400-470Mhz)

Impedance:50Ω

VSWR:＜1.5

Gain:2.15dBi/3.5dBi

Polarization:Vertical

Radiation:Omni

Lighting Protection:Direct Ground

Maximum Power Input-watts:50 W

Cable length/Type:4m/RG-58 C/U

Cable Termination:SL-16 Male(PL259)

Radiating Element Material:Stainless Steel