B923 Class B AIS Transceiver with VHF Splitter - 2W CSTDMA. Get the most from your on-the-water experience with the B923, a 2W CSTDMA AIS Class B transceiver. Certified AIS Class B – 2W CSTDMA. The B923 is equipped with an integrated VHF antenna splitter, which enables your transceiver to share your existing VHF antenna without any loss of performance.
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