The SI-TEX MDA-4 is a new VHF radio with digital selective calling (DSC) and a built-in dual channel AIS receiver. Built to MIL-STD-810G, it is designed to handle rugged, wet conditions on board. A host of features includes dual- and tri-watch to monitor multiple channels at once, programmable scanning and a built-in 25-watt hailer with selectable automatic foghorns and listen back. A large LCD displays AIS data including MMSI, call sign, ship’s name, bearing, distance, speed, course over ground, and closest point of approach with alerts.
MSRP $459 www.si-tex.com