Survey Rtk Gnss Receiver Efix F4+F7 GPS Receptor GPS Rtk Antenna

2021 New Cheap CHC IMU RTK EFIX F4+F7 IMU For Land SurveyingProduct Description   Product ParametersF7 ROVER GNSS Performance Channels 824 channels GPS L1,L2, L5 GLONASS L1, L2 Galileo E1, E5a, ESb BeiDou B1, B2, B3 SBAS L1 QZSS L1,L2, L5 GNSS Accuracies Real time kinematics (RTK) Horizontal: 8 mm+ 1 ppm RMS Vertical: 15 mm+ 1 ppm RMS Initialization time: < 10s Iitaliation rlability:> 99.9% Post-processing kinematics (PPK) Horizontal: 3 mm + 1 ppm RMS Vertical: 5 mm + 1 ppm RMS Post - processing static Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm+ 0.5 ppm RMS Code differential Horizontal: 0.4 m RMS Vertical: 0.8 m RMS Autonomous Horizontal: 1.5 m RMS Vertical: 3.0 m RMS Positioning rate 1Hz,5Hzand10Hz Time to first fix Coldstart: < 45 s Hotstart: < 10s Signal re-acquisition: 99.9% Post-processing kinematics (PPK) Horizontal: 3 mm + 1 ppm RMS Vertical: 5 mm + 1 ppm RMS Post - processing static Horizontal: 2.5 mm + 0.5 ppm RMS Vertical: 5 mm+ 0.5 ppm RMS Code differential Horizontal: 0.4 m RMS Vertical: 0.8 m RMS Autonomous Horizontal: 1.5 m RMS Vertical: 3.0 m RMS Positioning rate 1Hz,5Hzand10Hz Time to first fix Coldstart: < 45 s Hotstart: < 10s Signal re-acquisition: