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Diamond Point International

Trimble A3000 - Dead-Reckoning Combined with GPS Positioning

When GPS Alone Is Just Not Good Enough


The A3000 DR+GPS device combines dead reckoning (DR) capabilities with GPS to produce accurate and instantaneous positions, even under the most difficult conditions. It supports a broad range of vehicle monitoring, management and recovery applications. The A3000 dramatically improves quality of service and customer satisfaction and retention, helping tracking service providers to maximize revenue opportunities. The A3000 is based upon the popular Trimble Aardvark SMT module.

Hardware architecture

The A3000 encompasses a GPS positioning solution plus dead reckoning capabilities, a comprehensive vehicle interface section, and rich set of options. It is offered in a standard configurations as well as custom configurations for specific customers and applications.

  • GPS positioning solution
  • Priority dead reckoning solution
  • Backup battery interface

Model Variations

  • -30 single axis gyro, wheel tick measurements
  • -50 three-axis gyro, wheel tick measurements, any angle mounting, capable of self-calibration for mounting angle


Product Specification

GeneralGPS Single Frequency L1, SBAS capable
Update rateDR fix rate: 5 Hz (default) with 10 Hz option
GPS fix rate: 1 Hz
AccuracyDR Accuracy (refer to Condor for GPS accuracy):
Horizontal Accuracy (DR): 5 m (CEP 50%)
Altitude Accuracy (DR): 5 m (CEP 50%)
Speed Accuracy: 0.5 % of Speed
Heading Accuracy: <2 degrees
PPS Accuracy, relative to UTC/GPS-Time: <± 25 ns (50%)
Time to First Fix2 s (DR)
Operational LimitsAltitude: -1000 m to +18000 m MSL
Velocity: 515 m/s
Acceleration: 4 g
Motion jerk: 20 m/sec³
SensitivityAcquire a signal: -146 dBm
Track a signal: -160 dBm
ConnectorsSMA antenna connector
24-pin automotive connector (for both power and I/O)
Interfaces2x UART
2x Digital inputs:
• Odometer: 0 kHz–3 kHz, distance of 1 cm–1 m per pulse
• Forward/Reverse indicator (Optional)
ProtocolsNMEA or HIPPO binary
Serial Ports38400 Baud, 8 data bits, None parity, 1 stop bit (default, Baud rate and Parity are configurable)
Supports proprietary NMEA messages
OtherTwo variants:
• Flat: This version must be mounted flat in the vehicle.
• Tilt: This version includes a three axis gyro and can be mounted in any orientation in the vehicle

The A3000 supports the following hardware load options:
• Rechargeable NIMH backup battery
• 1 GB microSD memory expansion for data logging
• Internal GPS Antenna


Electrical9 V DC to 30 V DC (main and switched)
50mA typical power consumption, 150mA max
Antenna Power Supply Voltage: Vcc
MechanicalMolded from high-temperature, automotive-grade plastic with integral mounting tabs, the A3000 is designed for permanent installation
Protection: IP54
Dimensions: 115 mm x 78 mm x 26 mm
TemperatureTemperature range (operation): -40 to +85° C
Temperature range (storage): -40 to +85° C
Humidity5% to 95% RH non-condensing @ 40°C
Weight1.8 grams (0.06 ounce) including shield
Vibration50g rms
Safety/CertificationFCC Part 15b
Industry Canada
CE-EC R&TTE Directive
Warranty1 Year

Ordering Details

Board99899-30 A3000 flat mount GPS
99899-50 A3000 tilted mount GPS
Accessories69815-06 Cable, TM3000/A3000, 2M length, cigarette & DB9 connectors

66800-52 3.0V, 27dB GPS antenna, mag mount, 5 meter cable, SMA connector
57860-20 Bullet III 3.3V GPS antenna TNC connector, 35dB gain
70228-00 3.0V Hardmount GPS Antenna with TNC connector, 28 dB gain

89106-30 Aardvark A1919 DR+GPS starter kit flat gyro
89106-50 Aardvark A1919 DR+GPS starter kit tilted gyro
Starter kit contains three Aardvark modules, one A3000 unit (A1919 mounted on PCB in tough rugged plastic case), one antenna (3V, SMA connector, 5 meter length) and one A3000 interface cable.

88788-30 Aardvark A1919F DR+GPS flat gyro
88788-50 Aardvark A1919F DR+GPS tilted gyro