On Sat, Oct 10, 2009 at 06:11:32PM -0400, Lee Haefele wrote: > More: My Garmin 3210 chartplotter is thinking it is Mar 1990 and is > changing daily. Has anyone else experienced this? E.mailed Garmin, but no > answer.
My best guess about this is based on similar PC behavior: if it's an older unit, the internal battery on it may have died. As a result, it's resetting back to the "base" date of the unit's ROM. This behavior can be erratic, as well (that is, it can be fine for a day or two, then reset the date with no warning - or it can just reset every time you turn the unit off.) In pretty much all modern PCs, these batteries are replaceable. In a GPS? Maybe, or maybe not. I suspect that the average Garmin phone drone has no idea - you'd need to actually talk to a technician to find out. > The GPS is located in the antenna puck. How do I determine if the > GPS or plotter is causing the problem? What do these pucks output to the > plotter? Can I send a signal from a handheld? If you have access to a Linux box, hook the puck up to it and run 'gpsd' with '-N' and '-D 4' options from the console; this outputs the NMEA sentences right to the screen and sets the debugging level high enough that you'll see everything that's happening. You can also "talk" to the GPS via this interface: that is, you can enter single characters to get info from it (like 'd' to get the date and the time in UTC). See the 'gpsd' man page for more info. You can do the same thing with the GPS handheld. It's a great troubleshooting tool. -- * Ben Okopnik * Editor-in-Chief, Linux Gazette * http://LinuxGazette.NET * _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [email protected] To unsubscribe send an email to [email protected] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
