B&g ZG100 Zeus GPS Antenna -
A precision GPS antenna with integrated electronic compass, ZG100 delivers extremely accurate, rapid boat position and speed updates. Its receiver updates data at 10Hz, up to five times faster than previous sensors for smooth and accurate location. The integrated electronic compass/gyro provides magnetic heading for accurate boat direction and chart stabilization at any speed, and supports radar/chart overlay. Easily connects via NMEA 2000.