598-SW-S 8 AIS Marine Antenna w25 CableDesigned to meet the exacting AIS frequency requirements and in conjunction with the USCG Automatic Identification System AIS requirements for commercial vessels, Digital Antenna created a series of 8 AIS antennas that provide a low 1.51.0 SWR ratio from 159-162 MHz. These 4.5dB gain AIS antennas offer unsurpassed durability and performance and are compatible with all AIS transponders.Customers and installers love the easy installation connector system on t