Skippa ... have you tried using a GPS converter site ??

I tried to manually enter GPS coords off a website into my Lowrance Elite 5DSI ... and couldn't get all the numbers to fit. I entered them without the last digit & then checked the location on the converter website. The waypoint ended up being somewhere in a Eastern European country

Come to find out that my unit only recognized one type of GPS coord numbers, and there are at least three different types. I had to write down all 200 waypoints & then convert them to the type my unit would accept, then manually enter them into the unit.

This is the converter site I used : GPS Coordinate Converter, Maps and Info