Simrad RS100-B Blackbox VHF RadioSimrad RS100 B Blackbox VHF Radio Simrad RS100 B Blackbox VHF Radio with integrated Class B AIS transceiver and GPS. Kit includes NRS 2 VHF Blackbox module with Class B AIS built in, GPS 500 antenna, one HS100 wired handset, and one SP100 speaker. FeaturesIntegrated Class B AIS transmitter and receiverBundled with a dedicated GPS receiver, GPS 500 for AIS transmissionClass D DSC approved VHF radioIntegrated GPS receiverConnect up to four wireless and