Monthly Archive: December 2006

Getting ready for Class B, does your AIS plotter do DR? 3

Getting ready for Class B, does your AIS plotter do DR?

This diagram—borrowed from Dr. Andy Norris’s valuable AIS/06 conference presentation—illustrates various possible target presentations for a vessel doing 30 knots over a one minute time period. The green dots roughly represent both radar paints and Class A...

Less expensive XM Weather, Navionics Gold+ too 0

Less expensive XM Weather, Navionics Gold+ too

EliBoat made a good catch last week, spotting this Bushnell ONIX400CR GPS and XM handheld. The specs, as spied out by the sat radio blog Orbitcast, look impressive—waterproof, 3.5” screen, XM weather & audio, aerial and...