Single channel switching receiver (NASA) and full time dual channel receivers (EasyAIS and Comar). What are the differences between these models?
All the units can receive AIS information from either AIS channel. The Nasa can only receive information on one channel at a time but automatically switches between both channels. The EasyAIS and Comar units can receive all AIS broadcast information from both AIS channels simultaneously and consolidate the information from both channels into a single data stream. This generally means you will acquire new vessels sooner with the dual channel units and you will also get the full information about a vessel in a shorter period of time.
