Only took my boat out once since installing my 898c SI. I tried to leave the pole out of the water, but the fluke were calling so I was multitasking. I did manage to figure out a lot of the unit.
I have a Navionics card in the left hand slot. I would like to put a sd card for snapshots and recordings in the right hand slot. How do I make sure the unit does not write on my Navionics card? I don't see a slot designation in the manual.