[Great Specifications] The NMO antenna features VHF UHF of 144/430MHz (136-174MHz and 400-470Mhz) with VSWR less than 1.5 and Gain: 144MHz (3.0dBi), 430MHz(5.0dBi). The maximum power input is 100W along with impedance 50Ω. [Premium Material] This 20inch or 51cm tall antenna is composed of stainless steel making it durable and lightweight with a weight of 160g. The NMO mobile transceiver antenna requires no tuning. [NMO 3/8" Through-Hole Mount] Mount for NMO antennas. This requires a small (typically 3/8") hole be drilled through the surface hosting the mount, and is the best choice for an extremely rugged installation. [RG58A/U Coax Cable Included] The length of RG58 cable is 13 feet, one end is NMO mount, the other end is PL259 connector. [Compatibility] The two-way antenna is compatible with VHF UHF Motorola Kenwood Icom Vertex Blackbox HYT Hytera mobile radios. The TWAYRDIO antenna features a frequency range of 144/430 MHz (136-174MHz VHF and 400-470Mhz UHF) with VSWR:< 1.5 which is carefully planned and developed to make sure, you receive great transmission over many uses.

Antenna Electrical Specifications:

- Frequency Range: 144/430 MHz

- Impedance: 50 Ω

- VSWR: <1.5

- Gain: 144MHz (3.0dBi),430MHz(5.0dBi)

- Polarization: Vertical

- Radiation: Omni

- Lighting Protection: Direct Ground

- Maximum Power Input: 100 W

Antenna Mechanical Specifications:

- Height: 20inch/51cm

- Antenna Connector: NMO

- Weight: 160g

- Radiating Element Material: Stainless Steel

NMO Antenna Mount:

- Mount connector to antennas: NMO

- Cable connector to radios: PL-259 (SL16 Male/UHF Male)

- 13ft low loss RG58A/U coax cable