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APS-T

The APS-T features a high precision GNSS satellite receiver with embedded L-Band capability, designed to provide seamless TERRASTAR D 10 cm positioning to the surveying market

Integrated with state-of-the-art technology, the APS-T provides surveyors with a product that automatically utilizes Precise Point Positioning algorithms with L-Band corrections for decimeter level positioning.

For extending capabilities, the APS-T is fully upgradeable to a GPS + GLONASS RTK rover. For ease of use and simplicity, the APS-T is completely configurable from the data collector via Bluetooth or serial cable.

APS-T Features

  • 136 Channel GPS + GLONASS + SBAS + L-Band receiver
  • Integrated Quad-Band GSM/GPRS Modem Integrated Bluetooth
  • Two Hot-Swap Li-Ion Batteries with Fuel Gauge
  • Removable 2 GB SD Card
  • TERRASTAR Ready

Integrated with state-of-the-art technology, the APS-T provides surveyors with a product that automatically utilizes Precise Point Positioning algorithms with L-Band corrections for decimeter level positioning.

The 10 cm position accuracy is achieved without the use of local base stations broadcasting by terrestrial radio, and without the connection to RTK networks with cellular modems.

The L-Band corrections are automatically received through the integrated GNSS antenna. Should the need arise for RTK capabilities, the APS-T is fully upgradeable to a GPS + GLONASS RTK rover.

For ease of use and simplicity, the APS-T is completely configurable from the data collector via Bluetooth or serial cable."With Altus’s open architecture philosophy, the user has the choice of data collector software from MicroSurvey FIELDGenius or Carlson SurvCE to custom software.

Note: The TERRASTAR L-Band correction service requires a subscription. The service is for land operations only.

The APS-T is ready to use direct from the shipping case

APS-T Benefits

Ready For Use

  • 10 cm Precise Point Positioning (PPP) operation with TERRASTAR on-board
  • No local base or RTK network connection required
  • Global accuracy of 10 cm on ITRF 2008
  • High capacity hot swappable Li-Ion batteries for all day work
  • Data collector software with intuitive ease-of-use for all features.
  • Lightweight and compact unit designed for ultra portability.

 

GNSS Performance

  • PPP at 10 cm with TERRASTAR D
  • DGNSS at 1m with TERRASTAR M
  • GNSS Receiver with GPS, GLONASS, & SBAS as standard, as well as future compatibility with GALILEO, and BeiDou.
  • Cable free operation with integrated Bluetooth

 

Usability

  • L-Band is integrated into the GNSS so only a subscription is required for PPP with TERRASTAR.
  • Fast location in remote areas without infrastructure
  • Easy upgrade to APS-3L for RTK.
  • Removable SD Card enables plug and play raw data transfer for post processing.
  • External DC power input for continuous operation.
 

APS-T Specifications

Channels 136
GPS L1/L2/L2C
GLONASS L1/L2
SBAS WAAS, EGNOS,
DGPS H: 0.50 m,     V: 0.90 m
PPP (TERRASTAR D) H: 0.10 m,     V: 0.20 m
Static H: 2 mm + 0.5 ppm,     V: 5 mm + 0.5 ppm
Output Rate 25 Hz
Latency <20 msec
Average Time To Fixed RTK <7 sec
Cold Start <45 sec
Warm Start <20 sec
Re-acquisition <1.2 sec
Integrated Bluetooth Class 2
Memory Storage 2 GB SD card minimum, removable
User Interface
Power/Reset/Logging
Data Collector or PC
Serial Ports 1 x 5-pin Lemo, 1 x 8-pin Lemo
Waterproofing IP67
Certification CE, FCC Class B Part 15
Internal Battery 2 x Li-Ion, 5000 mAh, 7.4V
Current Drain 1.0 to 1.5A, 2.75A peak
External Power Input 9 to 18 VDC
Weight 1.3 kg
Dimensions 178 mm Dia. X 89.7 mm
Operating Temperature -20 to +65 degrees C
Storage Temperature -40 to +75 degrees C
Shock/Drop 2 m