Hello - bit out of touch with eXplorists these days as I have moved on but mates 210 is no longer communicating with PC so trying to help out. As you can
Declination varies a little from year to year. Just look at an old Topo of your location and compare it to today's or to your GPS. Some airport runways have to
I agree that you MUST have a Map and Compass when using a GPS.  The problem comes into play when you are using you GPS to get your compass bearing at
This need brings up a related thought. One feature I would like to see on future gps' in general would be the ability to upload and display simple text files