| Highest Rated Fishfinders | ||
|---|---|---|
 | Humminbird Helix 5 CHIRP G2 | 4.8/5 |
 | Lowrance HDS 7 Gen3 | 4.7/5 |
 | Garmin Striker 7sv | 4.6/5 |
 | Garmin echoMAP CHIRP 73sv | 4.6/5 |
 | Raymarine Dragonfly 7 PRO | 4.4/5 |
The West Marine AIS1000 is a class-B AIS transceiver designed to display data on a compatible chartplotter, dedicated display, or on a PC with compatible software. The AIS1000 ships with the transponder unit, a GPS antenna, a power and data cable, a BNC to VHF adapter cable, and a user
The Raymarine AIS250 is designed to work as a marine AIS system in conjunction with either a C- or E-series Raymarine multifunction display. This unit is neither Class A or Class B, it operates as a receive-only unit. The AIS250 is housed in an 8.6-inch by 6.7-inch by 2.5-inch black
The Navico NAIS-300 is a full class-B marine AIS transceiver designed to display data on a compatible chartplotter, dedicated display, or on a PC with compatible software. The NAIS-300 is housed in a waterproof plastic 5.1-inch by 8.2-inch by 2.5-inch black box (actually grey) that weighs just over 21 ounces.
Marine AIS, an acronym for Marine Automatic Information System, is ship collision avoidance technology, which has been required on large commercial ships since 2002, that has finally trickled down to recreational boaters. Automatic Information System (AIS) is similar in function to the mandatory collision avoidance system carried on airliners. Simply