Model:: Ashtech promark 800 RTK accuracy:: 10mm + 1 ppm typical Static post-processing:: 5mm + 1 ppm typical Kinematic post-processing:: 12mm + 2 ppm typical DGPS:: less than 25 cm + 1 ppm Statellite:: GPS GLONASS SBAS L1 L2 SBAS:: less than 50 cm Data formats:: ATOM RTCM-2.3 CMR CMR + DBEN LRK Message output:: NMEA 0183 RTK Network:: VRS FKP MAC