My Garmin GPS 72 update

[Brian D]

Unlike my Garmin GPS 12 which had the wrong date but correct time, my Garmin GPS 72 had the correct date but wrong time. So the GPS 72 manage to survive the rollover. But obviously not unscathed.

Went to Garmin's website and wow, they had an upgrade version for the GPS 72. Did the upgrade yesterday using my trusty Windows XP machine and now both my GPS' are working just fine.

The GPS 12 is connected to the autopilot and is located at the wheel. The GPS 72 is connected to the radio for DSC purposes. The reason I chose those two was the fact they had external ports for NMEA data and external power. The GPS 72 is in the boat but receives GPS signals at the same level as the GPS 12 which is outside.

Fun, fun, fun.

 

[dLj]

What rollover???

Glad both are now working.

dj

 

[kappykaplan]

What rollover???

GPS week zero began on 06 January 1980. The 1024 weeks counter then ran out and rolled over on 21 August 1999. The week counter then reset to zero. The most recent Rollover event occurred on 06 April 2019, and the next time the counter will reach week 1023 and roll over is on 20 November 2038. The GPS broadcasts a date, including a week number counter that is stored in only ten binary digits, whose range is therefore 0–1023.