Marine GPS mapping software is the heart and soul of your GPS or GPS / Fishfinder Combo. Many GPS devices come pre-installed and combined with simple maps of large lakes and reservoirs. While preloaded maps are always better all the time, many people choose to add-on software mapping and "upload" to their GPS to buy. You can mark waypoints and track not only the course, some of these more expensive map versions provide detailed information about water depth, contour and also fishing hotStains.
The first thing to note, the design of your GPS or fishfinder. While some cards that are preloaded to add as mentioned above, some of the cheaper models do not offer the opportunity to purchase additional maps, which means that you can not update the maps supplied with the device.
The second limitation, and perhaps most important when it comes to buying a map to your GPS or fishfinder combo unit is installed, be sure to get the right to "format". There are many manufacturers ofGPS devices, Garmin, Raymarine, Furuno, Lowrance, and - just to name a few. Add to this the fact that there are about as many "trained" for the GPS mapping software such as SD, c-card, FURUNO FP, Microsoft, MMC, CF, and others. Now this is very critical. You need the right kind of software that your special GPS games.
Some examples are as follows (these are just some general examples - always be sure to check with the manufacturer or the retailer). ManyEagle brand GPS devices use the SD-chip-type, while some models of Hummingbird use SD, MMC, while others use. Raymarine on the other side uses many of its models for CF. To complicate matters more, some formats differ not only on the brand, but type-specific model of device-dependent.
The point is, it can be confusing. Just be sure to read all the documents and make sure you know the correct file format, purchase, especially online. Many resellers do not accept returns on gps-mappingSoftware.
But if you have not installed the right card for the accuracy and detail of modern software GPS is excited. Happy boating and fishing.