http://gpstracklog.com/2009/10/garmin-dakota-20-review.html This demo of how to calibrate the electronic compass is part of my full Garmin Dakota 20 review
http://gpstracklog.com/2009/10/lowrance-endura-sierra-review.html
A look at the map screen on the Lowrance Endura Sierra handheld GPS, to accompany my full review
