Humminbird AS GRP Precision GPS Antenna provides fast position fixes accurate within 2.5 meters. Provides more accurate position fixes than the industry standar GPS. The Humminbird AS GRP Precision GPS Antenna’s dimensions are: 3.25" diameter, 1.5" high and comes with 20’ cable and has a 1"-14 thread count stem mountable with an optional atenna stem (atenna stem not included).
