Ken Mills
19-12-2010, 07:15 PM
I Have a lowrance globalmap 7500c with a SD card navonics. There is a used map card for sale at a fair price and as the one in my GPS does not cover this area I am going to look at it. I have seen an earlier thread covering Green zones and will check it for that. The main Question is as it is navionics will the SD card cover different brands of GPSs, and any thing else I should look for