Lowrance Elite FS 12 Fish Finder/Chartplotter with Active Imaging 3-in-1, $1,798 (save $500) Humminbird Solix 10 Chirp Mega SI G3 Touch-Screen Fish Finder/GPS Chartplotter, $1,799 (save $600 ...

A chartplotter is a device used in marine navigation to combine GPS data with an electronic navigational chart (ENC) to display the position, heading and speed of a vessel, and may display ...

GPS frequency: 1575.42 ± 5MHz, Beidou frequency: 1561 ± 5MHz. Compatible with Boat Ship Marine GPS Navigation System Unit Modem Receiver Transducer Explorer Fish finder Sounder. External Marine ...