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
Type of ship
GPS antenna position
SOG (Speed over ground)
COG (Course over ground)
UTC date and time
GPS antenna type
PA (Position Accuracy)
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 collision-risk management
When a vessel comes into the CPA and TCPA range, the vessel icon blinks on the Plotter dispaly and emits a beep sound. When connected to external audio equipment installed on the deck tower, the collision alarm function will alert you even when you are away from the AIS transponder.
Individual DSC call
When connected to a compatible Icom VHF radio. It's easy to make an individual DSC call. Select a vessel using the MA-500TR's cusor keys and then push the "DSC" button on the MA-500TR. It is not required to input an MMSI number manually.
100 Waypoints memory
Up to 100 waypoints can be stored on the waypoint list. The "MOB" button allows you to set a waypoint on your current position instantly.
When the MA-500TR receives a safetey-related message from a Class A AIS transponder, the message icon appears on the Plotter display. Up to 20 received DSC messages are automatically stored in the log memory.
3-line NMEA input/output
The MA-500TR has 15-pin D-SUB connector providing 3-lines of NMEA input/output on the rear panel. The supplied NMEA connector cable simplifies the installation and connection to the VHF radio and other navigation equipment.
GPS receiver comes with MA-500TR
The MX-5000 GPS receiver is a 12 channel parallel GPS receiver with SBAS function.
- Other Features
- Full dot-matrix display with adjustable backlight and contrast
- Works with Icom's M504/M604 VHF radios
- IPX7 waterproof protection (up to 1m depth of water for 30 minutes, except connections)
- Self diagnosis function
- Flush mount installation with optional MB-75
- Slow warm function
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We ship via DHL International and USPS. Shipping insurance is optional but recommended and costs $5 for all international orders. Items that can fit in a flat rate envelope are shipped via flat rate service. Please keep in mind that USPS Flat Rate Priority Mail does not include detailed tracking and is not covered by insurance to certain countries. For a list of these countries please email us.
International order processing takes approx. 3-5 business days.
Many countries impose their own customs, duties, tariffs, taxes, etc... on items imported from the USA. We do not cover those costs.
The shipping transit times are approx. as follow:
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