VHF External Antenna Kit for Handheld Radios (VHF 144 - 174 MHz) - Icom BNC AdapterVHF External Antenna Kit for Handheld Radios (VHF 144 174 MHz) allows for enhanced radio range inside vehicles, optimal for short track, circle track, and street applications. The kit offers VHF 1 2 Wave Antenna (144 174 MHz), with 15' of cable including an NMO Cable Mount and BNC Connector. BNC adapters are specific to individual radio models, thus ensure you select an appropriate BNC connector. Over tightening the antenna to the NMO connector is not