I recently ran into issues with the compass on my Garmin GPSMAP 64st requiring constant re-calibration. It turned out to be a battery issue. Make sure you use high quality batteries like the Eneloop (and no I am not pushing the product. Low quality batteries can actually produce unclean power and mess things up with delicate electronics.
What are you talking about? The battery is in no way user replaceable or even accessible!
Narziss, my GPSMAP 64st GPS has an electronic compass that generally works quite well. The GPS itself is powered by two AA batteries. When I put some no-name batteries in the GPS to go on a short geocache hunt, the compass froze several minutes after calibration. This happened several times. When I swapped out the batteries to the Panasonic Eneloop brand that I usually use, the compass problem vanished. Hope this makes sense.
In words of one sill a bull. The bat er rees on the F6 are not re place a bull or axe s a bull
My apologies. We are talking two very different devices. I posted to the wrong thread by accident.