The J-NAV system is designed for high-accuracy marine tracking: Can store up to 499 waypoints Display Modes: Switch between CDI (Course Deviation Indicator) mode, Plot mode, and standard Navigation screens.
: Parses standard NMEA sentences including GLL (geographic position), GGA (fix data), RMC (recommended minimum navigation data), GSA (active satellites), and GSV (satellites in view). J-nav Gps Analyzer Download--
Sometimes Windows will reassign the COM port number when you plug the device into a different USB slot. Check your Device Manager to confirm which COM port the GPS is utilizing, and match that in J-Nav. The J-NAV system is designed for high-accuracy marine
This article answers all those questions and more. GGA (fix data)
: Decodes standard NMEA and proprietary GPS messages (e.g., $GPGGA , $GPRMC , $GPGSV ) into human-readable data.