Originally Posted by fallard
In other words, the setup for your 450 compass is separate from the setup for your 450 map display (which does not have a "Magnetic up" option).
Thanks, the map & compass separate-that's what had me confused, I didn't realize what I was setting here. Then I held the GPS very still and changed between True & Magnetic and sure enough two different readings, had it in my head the compass don't read True, but this reads both.
I don't believe setting HomePort to either True or Mag makes a difference once the waypoints are loaded to the Oregon correct?