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Trimble BX940 Triple Frequency GNSS Receiver


Not only is the BX940 triple frequency GNSS receiver from Trimble suitable for continuous centimeter accuracy in a compact package, but it can also be used as a GNSS DGPS/RTK base station. The rugged enclosure makes it suitable for use in the harshest environmental conditions.



The Trimble BX940 consists of a single BD940-INS receiver module packaged in a rugged, environmentally sealed enclosure that is very easy to install.

Get the quickest and most reliable RTK initializations for 1–2 centimeter positioning with the Trimble BX940. This is achieved through triple frequency support for the GLONASS and GPS and constellations. Alternatively, dual frequencies can be used from Galileo and BeiDou.

The Trimble BX940’s single antenna heading is not influenced by magnetic field variations, resulting in robust moving baseline RTK for precision landing on moving platforms.

Integrate the BX940 into you own systems easily and fast by using the Ethernet connectivity available on the board. This makes high speed data transfer possible and configuration can be done by using standard web browsers. If Ethernet is not convenient for you, simply choose between the USB and RS-232 ports.

Lever arm data can be input via an intuitive 3D interactive graphical web page, while dynamic and graphic models for various vehicle types can be selected.


  • 336 channels for multi-constellation GNSS support
  • On-board advanced MEMS inertial sensors
  • Position and orientation data updated at a high rate
  • Single antenna heading immune to magnetic field variations
  • Continuous positioning data available, even in environments without GNSS

Technical Specifications

Tracking Channels
GPS: L1 C/A, L2E, L2C, L5
Galileo: E1, E5A, E5B, E5AltBOC
BeiDou: B1, B2
SBAS: L1 C/A, L5
MSS L-Band: OmniSTAR, Trimble RTX
Size: 149 mm x 93 mm x 43 mm
Weight: 0.66 kg
Input Voltage: 3.3V DC to 5V DC
Power: 9V DC to 30V DC
Typical 3.5 W (L1/L2 GPS + L1/L2 GLONASS)
Operating Temperature: -40 °C to +75 °C
Storage Temperature: -55 °C to 85 °C
Vibration: MIL810F, tailored
Random 6.2 gRMS operating
Random 8 gRMS survival
Mechanical Shock: MIL810D
±40 g operating
±75 g survival
Operating Humidity: 5% to 95% R.H. non-condensing, at +60 °C
IP Rating: IP67

Case Studies


The BX940 triple frequency receiver from Trimble is available through TerrisGPS. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.

  • Enclosure part number: 103428-XX
  • Available in a variety of configurations from L1 SBAS upwards

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Client Testimonials

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

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