The JHS-770S/JHS-780D Class A VHF radiotelephone is available as semi-duplex and full-duplex, incorporating an advanced modular design that allows for maximum installation flexibility.
The JHS-7 is a hand-held portable VHF radiotelephone for on-scene, life-saving two-way communication between ships, which is in accordance with the SOLAS convention. The JHS-7 is robustly designed to survive in the harshest marine conditions. The JHS-7 comes standard with 13 single-frequency voice channels including Channel 16 (156.800 MHz), using only 0.25 to 1 Watt of transmitted power. It can also be used for onboard communication.