If I am just saving waypoints do i really need a blank sd card in my unit? Id like to keep two map cards in the unit.
If I am just saving waypoints do i really need a blank sd card in my unit? Id like to keep two map cards in the unit.
You need a memorycard in the unit if you want to save your waypoints (copy) from the internal memory where they are stored by default.
Waypoints are stored on the HDS internal memory, so you ONLY need a blank sd card to be in there if you want to copy them to take away for some purpose.
Keep your 2 map cards in the unit until you need to do that.