1870 - Map Card

[jasgator5220]

The 1870 that came with the boat I recently purchased has no map card. Curious what I can/should buy to get this unit running. I live in south Florida (Delray Beach), but go down to the Keys pretty often.

 

[Ishmail]

That unit used CMAP 4D. The best chart would be here:

https://www.thegpsstore.com/C-MAP-4D-Lo ... SkQAvD_BwE

 

[jasgator5220]

Much appreciated!