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52 SPAN-IGM User Manual Rev 2
Appendix A Technical Specifications
This appendix details the technical specifications of the SPAN-IGM.
A.1 SPAN-IGM-A1 Technical Specifications
Table 8: SPAN-IGM-A1 Physical Specifications
Table 9: SPAN-IGM-A1 GNSS Performance
Table 10: SPAN-IGM-A1 Data Rates
Table 11: SPAN-IGM-A1 IMU Performance
PHYSICAL
Enclosure Size 152.0 mm x 141.5 mm x 50.5 mm
Weight 515 g
CONNECTORS
MAIN DB-15HD Female
AUX DB-15HD Male
RF Antenna Connector TNC Female
HORIZONTAL POSITION ACCURACY (RMS)
Single Point L1/L2 1.2 m
SBAS 0.6 m
DGPS 0.4 m
RT2 1 cm + 1 ppm
DATA RATES
GNSS Measurement 20 Hz
GNSS Position 20 Hz
IMU Measurement 200 Hz
INS solution Up to 200 Hz
Time accuracy 20 ns RMS
PERFORMANCE - GYROS
Gyro Input Range ± 450 °/second
In Run Gyro Rate Bias Stability 6 °/hour
Angular Random Walk 0.3 °/√hr
PERFORMANCE - ACCELEROMETERS
Accelerometer Range ± 18 g
In Run Accelerometer Bias Stability 0.1 mg
Velocity Random Walk 0.029 m/s/√hr