1. Unmatched accuracy; 2. Combines GPS L1, L2 and L2C with GLONASS as an ... and grow as your business needs change. Supporting GPS L1, L2, and L2C signals, the Trimble R6 ... low elevation tracking technology• Satellite signals tracked simultaneously: − GPS: L1 C/A, L2C, L2E (Trimble method for tracking L2P) ... − GLONASS: L1 C/A, L1P, L2C/A (GLONASS M only), L2P ...