Detailed Product Description Marine gps, Marine GPS, Fishfinder, GPS Chart plotter, GPS receiver, SBAS receiver FEATURE:1) Improved ... display modes include Plotter, Nav Data, Steering, Highway, Speedometer and two customizable modes. The Steering mode provides an ... broadcasts the differential corrections to users. SPECIFICATIONS1. GPS/SBAS1) Receiver Type: GPS: Twelve discrete channels, C/A code, all ...