Constellation:GPS, GLONASS, SBAS Frequency:L1, L2 Channels:45 Update Rate:0.05 sec Data format:RTCM 3.1, ATOM, CMR(+), NMEA Raw data output:Yes Real-time Accuracy - RTK mode (HRMS):1 cm Real-time Accuracy - DGPS mode (HRMS):< 30 cm Real-time Accuracy - SBAS mode (HRMS):< 50 cm Post-Processed Accuracy (HRMS):0.5 cm + 1 ppm Show More