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Specifications
Specifications for RT products can be found below. These specifications are listed for operation of the system
under the following conditions:
• A short warm-up period (~3 minutes) during which motion inputs will be used by the navigation system to
estimate sensor error characteristics.
• Open-sky environment, free from cover by trees, bridges, buildings, or other obstructions. The vehicle must
have remained in open sky for at least five minutes for full accuracy.
• The vehicle must exhibit some motion behaviour. Acceleration of the unit in different directions is required
so the Kalman filter can estimate any errors in the sensors. Without this estimation, some of the
specifications degrade.
• The distance from the INS measurement point to the primary GNSS antenna must be known by the system
to a precision of five millimetres or better. The vibration of the system relative to the vehicle cannot allow
this to change by more than five millimetres. The system will estimate this value itself in dynamic
conditions.
• For dual antenna systems, the system must know the relative orientation of the two antennas to 0.05° or
better. The system will estimate this value itself under dynamic conditions.
• For single antenna systems, the heading accuracy is only achieved under dynamic conditions. Under
benign conditions, such as motorway driving, the performance will degrade. The performance is undefined
when stationary for prolonged periods of time.
Table 3. RT3000 v4 performance specifications
GNSS tracking GPS L1, L2
GLONASS
L1, L2
Galileo E1, E5
BeiDou B1, B2
GPS L1, L2
GLONASS
L1, L2
Galileo E1, E5
BeiDou B1, B2
L-Band
Position accuracy
1
1.5 m CEP SPS
0.4 m CEP DGPS
0.01 m CEP RTK
1.5 m CEP SPS
0.6 m CEP SBAS
0.4 m CEP DGPS
0.1 m CEP PPP
0.01 m CEP RTK
Velocity accuracy 0.025 km/h RMS 0.025 km/h RMS
Roll/pitch accuracy 0.01° 1σ 0.01° 1σ
Heading accuracy
2
0.04° 1σ 0.04° 1σ
Track angle accuracy (at 50 km/h) 0.04° 1σ 0.05° 1σ
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