PRODUCT OVERVIEW6¨ VHF Helical Antenna for portable radio, frecuency 136-174 MHz, Thread Connector Monopole (Flat or Thread)PRODUCT TYPEAntennas (Radio)KEY FEATURES Optimized for VHF Frequency Range 136-174 MHz High 18 dBi Gain for Extended Communication Range Handles Maximum Input Power of 50 Watts Omnidirectional Radiation Pattern With Vertical Polarization Compact 6 in Height for Portable Radio Applications SMA Female Connector for Easy Installation and Compatibility TECHNICAL SPECIFICATIONS Brand: Txpro Model: TXKRA4A Product Type: Radio Parts Optimized for VHF Frequency Range 136-174 MHz High 18 dBi Gain for Extended Communication Range Handles Maximum Input Power of 50 Watts Omnidirectional Radiation Pattern With Vertical Polarization Compact 6 in Height for Portable Radio Applications SMA Female Connector for Easy Installation and Compatibility INTENDED USE / APPLICATIONS Professional networking and communications deployments Commercial, institutional, or industrial installations Use with compatible equipment according to manufacturer specifications