Category: Navigation

When I first heard about ActiveCaptain’s plan to enable route sharing amongst it users, it was via a group email from a very experienced bluewater cruiser “in absolute shock that a boat owner/skipper navigating a boat through unfamiliar waters would use somebody else’s waypoints.” I posted the whole note for discussion in the Forum, but only AC developer Jeff Siegel and I participated. Well, now route sharing is fully enabled at the ActiveCaptain site, as illustrated in the screen shot collage above, and I still don’t understand why anyone would object, particularly given AC’s careful implementation…

Holy cow!  The just-announced-today Lowrance/Simrad 4G Broadband Radar may look just like the original BR24 and its 3G upgrade, but there’s some astonishing NEW technology under that dome. In fact, Navico engineers seem to have overcome what I thought was an immutable law of radar physics, that beam width is purely a function of radar antenna length. I understood how the original FMCW solid state transmit technology — which is like CHIRP sonar — could produce better range resolution, but the BR24 and 3G are still limited to a 5 degree horizontal resolution just like all the other radomes in that 20″ size range. Not 4G!…

I learned a lot at the 2011 NMEA Conference & Expo, and got a first peek at some wonderful new marine electronics, but I’ll start my coverage with the scene above. Here on Panbo we started discussing GPS interference caused by LightSquared’s proposed new U.S. broadband cellular network back in March, and the entry now has 111 comments, many vigorously opposed to the LS plan.  Plus the Coalition to Save Our GPS has become a powerfully united and outspoken voice, and the whole darn mess has recently become a political football.  So it seemed fairly brave of Geoffrey Stearn — who is LS’s VP of Spectrum Development — to step into a room full of marine safety authorities (U.S. GMDSS Task Force) and NMEA members all of whose work depends on reliable GPS positioning…