The GPS 73 is perfect for powerboats, sailboats or small watercraft that lack a chart plotter, and can also serve as an emergency navigation backup for all vessels.
With its high-sensitivity receiver, boaters can acquire a position fix quickly and easily. The unit marks and stores up to 1,000 waypoints and 100 tracks, which can be transferred to other devices via the USB interface, as well as NMEA 0183. Users can also connect the GPS 73 to a computer to utilize the free Garmin HomePort trip-planning software to plan upcoming routes, and to backup and store tracks, routes and waypoints.
Battery life has also been improved to more than 18 hours on two AA batteries. Like the legacy GPS 72, the updated GPS 73 is water resistant to IPX-7 standards (submersible in up to one meter of water for up to 30 minutes), and will float if accidentally dropped overboard.
The GPS 73 features a high-contrast, sunlight-readable display with a built-in backlight, and is easy to read in all lighting conditions. It also features built-in celestial data, including sunrise/sunset times and a fishing and hunting almanac.