em-trak B923 Class B AIS Transceiver w/VHF Splitter - 2W CSTDMA

The em-trak B923 Class B AIS Transceiver with VHF Splitter is a compact 2W CSTDMA marine safety device designed for vessels requiring real-time Automatic Identification System capability. This Class B AIS transceiver operates on international VHF maritime frequencies, transmitting vessel position, course, and speed data to other vessels and shore-based monitoring stations. The integrated VHF splitter eliminates the need for separate antenna installations, reducing topside clutter and installation complexity on boats where space and cable routing are critical considerations.

Specifications reflect Class B AIS standards mandated by international maritime regulations. The 2-watt transmission power provides reliable range up to approximately 20 nautical miles under optimal conditions, adequate for coastal and near-offshore operations where automatic vessel tracking enhances collision avoidance and emergency response. CSTDMA (Carrier Sense Time Division Multiple Access) technology manages channel access efficiently without centralized coordination, ensuring your transmitted data reaches other maritime traffic without interference. The compact form factor—measuring 7 x 6 x 8 inches and weighing 2.25 pounds—suits retrofit installations in cramped helm spaces or below-deck equipment lockers. FCC programming is required prior to activation in U.S. waters; TacticalSurplusUSA coordinates qualified technician programming at the time of purchase when you provide the necessary vessel documentation and MMSI registration.

This transceiver suits commercial fishing operations, charter services, leisure cruising, and any vessel-of-interest monitoring where automated position reporting improves situational awareness across busy shipping lanes and congested anchorages. Captains operating in high-traffic corridors—Gulf of Mexico, Great Lakes, Atlantic seaboard, and Pacific coastal zones—benefit from the reduced operational burden of manual position updates. Class B AIS remains the cost-effective entry point for smaller vessels and auxiliary craft unable to justify Class A systems, yet it delivers critical identification and tracking data recognized globally by vessel traffic services, other mariners, and maritime rescue authorities.