This combination GPS-VHF Antenna includes an integrated GPS antenna with a standard mount thread that acts as the base for both the GPS and VHF antennas.
The GPS is an active 2.4 - 5.5V 1,572.42 MHz system with 30 dB gain and can be used with most AIS devices.
The pre-tuned stainless steel VHF antenna is 39-inches tall. This 1/2 wave antenna provides 3 dB gain and works well with AIS devices and marine VHF radios (1.3:1 SWR).
The package includes a 23-foot RG-58/U cable with an FME adapter which attaches to an included VHF PL259 male connector and 23-foot RG-58 cable also with an FME adapter which attaches to any of the included TNC, BNC and SMA male connectors for connection to a GPS port. The FME connectors make installation easy since they are the same diameter as the cable and with the field-installable adapters allow the antennas to be used with virtually all AIS devices.
The antenna base has a standard 1 inch 24T threaded receiver for use with standard antenna mounts. This kit includes a nylon ratchet mount and mounting hardware.
We have tested this antenna with the following AIS products with very good results: