Detailed Product Description Marine gps, Marine GPS, Fishfinder, GPS Chart plotter, GPS receiver, SBAS receiver FEATURE:1) Improved accuracy ... SBAS, Satellite-Based Augmentation SystemsAn SBAS provider furnishes GPS signal corrections to SBAS users, for even better ... broadcasts the differential corrections to users. SPECIFICATIONS1. GPS/SBAS1) Receiver Type: GPS: Twelve discrete channels, C/A code, ...