The “B+” in its name signifies the jump to SOTDMA (Self-Organized Time Division Multiple Access), the same transmission protocol used by commercial Class A units. This ensures your vessel gets a “time slot” to transmit even in crowded harbors where standard Class B (CSTDMA) units might be blocked. The “_N” suffix denotes its enhanced Networking capabilities, allowing you to monitor AIS data remotely via an IP address.




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