Raymarine AIS100 Splitter Second generation AIS antenna splitter for use with Class B AIS transceivers and Class A & B AIS receivers. The AIS100 Splitter is designed to receive AIS signals and VHF transmissions simultaneously from one antenna. Features Shares a single VHF antenna with Class B AIS transceiver (or Class A & B AIS receivers) and VHF radio telephone Near zero loss (~1-1.5 dB) - saves installing two separate antennas Priority given to VHF transmissions LED power and status indicator Simple installation Compatible with any Class B AIS FM split output