Unit Dimensions: 1.3" H x 3" D 16-channel external GPS
receiver/antenna delivers high-sensitivity WAAS+EGNOS+MSAS satellite signal (1x
per second) for all NMEA 2000® networks except HDS. Advanced
performance for HDS displays with a real-time update rate of 5 times per second
for the most accurate position readings. Connects with NMEA 2000®
networks for enhanced location accuracy and improved satellite-signal fix with
reduced wandering. Includes spat cone for pole mounting.