What kind of GPS do I need?
The Nautical Maps software works with almost any GPS that supports the NMEA protocol and is connected to the PC via a USB cable. Install the driver or software that comes with the GPS and is compatible with your version of Windows. We don’t recommend using a wireless GPS.
To purchase an external GPS, click here: GNS-3000. Choose a model that can be connected with a USB cable. There are also special versions with a longer USB cable suitable for installation outside on the mast or railing.
In addition, the software can use a GPS that is connected to the on-board network via TCP.