Originally Posted by 1978SeaRider
No probs, what is AIS ready by the way ?
If you buy an AIS Class B Transponder, then you need to connect it in to a Chartplotter to display the other boats and relevant information. This is by NMEA0183 or indeed NMEA2000.
However even though the charplotter understand NMEA it does not always understand the AIS part of it. Newer sets are supposedly AIS ready so that you hook them together the plotter paints nice little boat pics on the chart.
I have a Navman 5500 which although nmea compatible is not AIS ready. So I think I need to get one that is and the Lowrance seems a good little box for the price. Although the navman takes C_MAP rather navionics.
THis is my limited understanding.