Transceiver Garmin AIS 800 Class B. Increase your situational awareness and confidence on the water with the Garmin AIS 800 transceiver. It has 5 watts of transmit power and provides faster position reporting than ever before¹. It transmits your vessel information to other AIS receivers in your area while it receives their AIS target data. Garmin AIS 800 has an internal VHF antenna splitter, which allows the VHF and AIS to share a single antenna. It includes a built-in GPS (with connector for optional external antenna) and integrates seamlessly into the Garmin onboard system. Features & Specifications: Operating Temperature Range: 5°F to 131°F (-15°C to 55°C) Waterproof Rating: IPX7 Compass safe distance: 15.8” (40 cm) Operating Voltage: 9.6 - 31.2 Vdc Current Drain: 12Vdc: < 400 mA; 24Vdc: