Garmin Signal 220 VHF Radio w/Built-In AIS Receiver [010-02951-01]Signal 220 VHF Radio with Built In AIS Receiver Built In AIS Stay aware of the water with built in AIS receive capabilities. This feature shows you range, course, speed, and the crossing situation of other AIS equipped vessels around you to help you navigate. Sleek Design The compact and modern design features edge to edge glass and takes up minimal space at the helm. Clear & Simple Communication Eliminate unnecessary radio noise with automated