The Barrett range of In-Line Voice and Position Encryptors are high performance, digital, in-line secure voice modems with built-in GPS. They are suitable for first responders, security agencies, governmental and paramilitary users with voice privacy and asset tracking. Easily integrating with all VHF, UHF and HF radio transceivers via the audio or accessory interface, the units are suitable for use with hand-held, man-pack and vehicular radio equipment.