What is VHF, Very High Frequency?

Garmin® ECHOMAP™ Ultra 2 16″ Chartplotter with Garmin® Navionics+™ Maps for U.S./Canada Inland, Coastal and Offshore, 166sv with GT56UHD-TM transducer EXECUTIVE OVERVIEW Very High Frequency (VHF) refers to the 30–300 MHz segment of the electromagnetic spectrum,...

Garmin AIS Automatic Information System

Garmin AIS, Automatic Information System, constantly broadcasts a vessel’s information, such as Maritime Mobile Service Identity (MMSI), location, speed, GPS heading, last position, nearest approach, and projected course for situational awareness and collision...