Garmin AIS 300 Automatic Identification System Receiver
http://www.amazon.com/gp/product/B003P22OGI?tag=sukses2015-20
Receives both Class A and Class B signals simultaneously and allows mariners to independently monitor both channels
A built-in passive splitter eliminates the need for two VHF antennas - giving you more space and making installation easy without the need for additional hardware
AIS 300 receiver can be easily integrated into the Garmin network on both 12-volt and 24-volt systems
