MA-500TR The MA-500TR is a class B AIS transponder that offers modern navigation safety while matching the clean look of Icom"s award-winning VHF and SSB radios. Give your helm a handsome, harmonious look for fraction of the price. The MA-500TR automatically shares your vessel information with other AIS transponders. If you want to contact another vessel, you no longer need to locate and punch in its 9-digit MMSI number - the MA-500TR does it automatically. AIS information is displayed on the MA-500TR"s own modest (yet clear and bold) screen or, for those who want a larger screen, in an NMEA-standard data stream for use by third-party chartplotters or other onboard nav gear. When you want the best, get the best. Get Icom. Simply the best. The MA-500TR is a Class B AIS transponder for Non-SOLAS vessels such as pleasure craft, work-boat and small vessels. Your vessels information will automatically be transmitted at fixed intervals or under base station control. The MA-500TR receives dual AIS channels (Ch. 87B and Ch. 88B) simultaneously and receives both Class A and Class B AIS information. Transmitted information by MA-500TR is: MMSI code Vessel name Call sign Type of ship GPS antenna position Ship"s position SOG (Speed over ground) COG (Course over ground) UTC date and time GPS antenna type PA (Position Accuracy) Simple operation The Plotter display looks like a marine radar display. North-up, course-up and range zoom from 0.125 NM to 24 NM are supported. The Target list display shows all detected AIS equipped vessels and targets. The Danger list display shows a list of vessels that are within 6 NM CPA and 60 minutes TCPA from your vessel. The Danger list can be sorted by CPA or TCPA order. In addition to these display types, the Detail screen shows various information about the selected AIS target. CPA and TCPA for c