I ordered my AIS receiver from Jack Rabbit Marine (it isn't yet available in this Chandlery). Since I went sailing yesterday, I tried it out temporarily rigged and was very happy with its data. I had lost my old chart plotter program, a victim of MS Vista on my new laptop. So, I downloaded SeaClear and charts from NOAA. SeaClear will support AIS and I am in a heavy traffic area, so I thought it would be helpful. When I set up the Smart Radio AIS 161 single channel unit. I had to pick up a serial to USB converter cable from Radio Shack ($37) and found a high-gain VHF/UHF rubber scanner antenna ($20) while I was there. I figured I'd try it out first since it fitted right on the AIS box and I have room behind the switch panel for both. That way I wouldn't have to use a splitter on one of my VHF antennas or install a third. It worked well enough to pick up signals from ships about five miles away which should be adequate for now. It was necessary to fiddle with the COM settings to get the chart plotter to get both the GPS and AIS signal at the same time, but it did. The ships appeared as ship-shapes at their respective positions on the chart and pointed to their compass angle. To query, I click on a ship, and then go to a menu to display the AIS information.The information is useful. It tells the status (underway, at anchor, at dock, etc) the call signs, name of vessel, size, course, speed, bearing from the yacht, etc. This is good information to have offshore at night and adds a safety element too.So far, so good. Something to consider for cruising in areas with a lot of commercial traffic.Rick D.