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Technical Specification - VBOX 3iS Single Antenna (v1)

Updated on Mar 13, 2026
Velocity
Accuracy0.1 km/h (averaged over 4 samples)
Update rate100 Hz
Maximum velocity655 kts (1200 km/h)
Minimum velocity0.1 km/h
Resolution0.01 kts (0.0185 km/h)
Latency20 ms (fixed)
Absolute Positioning
Accuracy3 m (95 % CEP*)
Accuracy with SBAS DGPS<1.8 m (95 % CEP*)
Accuracy with RTCM DGNSS Base Station40 cm (95 % CEP*)
Update rate100 Hz
Height accuracy6 m (95% CEP*)
Height accuracy with DGNSS2 m (95% CEP*)
Distance
Accuracy0.05% (>50 cm per km)
Update rate100 Hz
Resolution0.078 mm
Acceleration
Accuracy0.5 %
Maximum20 g
Resolution0.01 g
Update rate100 Hz
Heading
Resolution0.01°
Update rate100 Hz
Time
Resolution0.01 s
Accuracy30 ns
Brake Stop Accuracy (Trigger activated)
Accuracy±1.8 cm**


Definitions

* Circle of Error Probable (CEP): 95 % of the time the position readings will fall within a circle of the stated diameter

** Based on <50 m brake stop distance

Gyroscopes (Angular rate sensors)Accelerometers
Dynamic range±450°/s±20 g
Nonlinearity0.01 % of full scale0.1 % of full scale
Resolution16 bit ADC (0.014°/s)16 bit ADC (0.15 mg)
Bandwidth50 Hz50 Hz
Noise density0.01°/s/√Hz60 μg/√Hz
Bias stability0.003°/s15 μg
Bias repeatability (1 year)0.2°/s0.005 g
CAN Output
Output data rate125 kbit/s, 250 kbit/s, 500 kbit/s and 1 Mbit/s selectable baud rate. Software controlled CAN termination.
Data availableOutputs:Satellite count, time, position, speed, heading, body heading, height, vertical velocity, longitudinal acceleration, lateral acceleration, distance, IMU heading* , IMU roll angle* , IMU pitch angle* , X acceleration, Y acceleration, Z acceleration, pitch rate, roll rate, yaw rate, Robot heading *with IMU enabled.*with IMU enabledResults:Trigger event time, trigger speed, start speed, end speed, deceleration test time, lap time, split time, radius of turn.
RS232 Output
Output data rateUp to 100 Hz
Digital Output
Signal levelsLow = 0 V, High = 5 V, Max. frequency 4.4 kHz
Output typeSpeed, 1 PPS or Lap Beacon
GNSS Antenna Supply
Supply voltage5 V DC
Input Power
Input voltage range6.5 – 30 V DC
Power7.5 W (maximum)
Digital Input
Input functionBrake event trigger/ track marker
Weight480 g (approximate)
Size133.2 mm x 98 mm x 37.5 mm
Operating temperature-20°C to +70°C
Storage temperature-40°C to +85°C
IP ratingIP67