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Diamond Point International

Trimble BD920 - Dual Frequency GPS/GLONASS/GALILEO Receiver

Delivers Highest Accuracy For Mobile Positioning Applications

Trimble BD920 - Dual Frequency Receiver
Key Features
Dual Frequency GNSS Receiver
Flexible RS232, USB and ethernet interfacing
L1 RTK centimeter level position accuracy
Proven Trimble Maxwell 6 technology
Evaluation kit available
-40°C to +85°C temperature operation


The Trimble® BD920 GNSS receiver module has been designed for applications requiring centimeter accuracy in a very small package. Mobile platforms can now embed proven Trimble RTK technology using a shielded module with a 51 mm x 41 mm x 7 mm form factor. The Trimble BD920 is a complete drop-in, solder-down module manufactured and tested to Trimble's highest quality standards. This design ensures the high quality GNSS signals are protected from the sources of EMI on the host platform. It also significantly reduces radiated emissions which speeds compliance certification and time to market.

Multi Constellation GNSS

The Trimble BD920 supports both L1 and L2 frequencies from the GPS and GLONASS constellations plus the E1 frequency from Galileo. This delivers the quickest and most reliable RTK initializations for 1–2 centimeter positioning. For applications that do not require centimeter accuracy the BD920 contains an advanced kalman filter PVT engine that delivers high accuracy GNSS, DGNSS or SBAS positions in the most challenging environments such as urban canyons. Different configurations of the module are available including single frequency RTK and GPS only. All features are password-upgradeable, allowing functionality to be upgraded as your requirements change. The receiver also supports Fault Detection and Exclusion (FDE) and Receiver Autonomous Integrity Monitoring (RAIM) for safetycritical applications.

Demonstrated Performance

Industry professionals trust Trimble embedded positioning technologies as the core of their precision applications. With the latest Trimble-precise Maxwell™ 6 technology, the BD920 provides assurance of long-term future-proofing and troublefree operation. Moving the industry forward, the Trimble BD920 redefines highperformance positioning:

  • On-board multipath mitigation
  • Proven low-elevation tracking technology
  • Dramatically improved RTK initialization

Flexible Interfacing

The Trimble BD920 was designed for easy integration and rugged dependability. Customers benefit from the Ethernet connectivity available on the board, allowing high speed data transfer and configuration via standard web browsers. USB and RS-232 are also supported. Just like other Trimble embedded technologies, easy to use software commands simplify integration and reduce development times.


Product Specification

General220 Channels
Positioning SystemGPS: L1 C/A, L2E, L2C
GLONASS: L1 and L2 C/A
Galileo: E12
Update rateUp to 20 Hz raw measurement & position outputs
AccuracySingle Baseline RTK (<5 km):
• 0.008 m + 1 ppm Horizontal
• 0.015 m + 1 ppm Vertical
• <30 ms latency

• 0.25 m + 1 ppm Horizontal
• 0.50 m + 1 ppm Vertical
• <20 ms latency

• 0.50 m Horizontal
• 0.85 m Vertical
• <20 ms latency

Velocity Accuracy:
• Horizontal 0.007 m/sec
• Vertical 0.020 m/sec

RTK initialization time: typically <1 minute
RTK initialization reliability: >99.9%
Time to First FixCold Start <45 seconds
Warm Start <30 seconds
Signal Re-acquisition <2 seconds
Operational LimitsVelocity 515 m/sec
Altitude 18,000 m
ConnectorsI/O: 80 pin Narrow Pitch Panasonic Socket
Antenna: MMCX receptacle
Interfaces1 USB 2.0 Device port
1 LAN Ethernet port:
• Supports links to 10BaseT/100BaseT auto-negotiate networks
• All functions are performed through a single IP address simultaneously including web GUI access and raw data streaming
• Network Protocols supported: HTTP (web GUI), NTP Server, NMEA, GSOF, CMR over TCP/IP or UDPm, NTripCaster, NTripServer, NTripClient, mDNS/uPnP Service Discovery, Dynamic DNS, eMail alerts, Network link to Google Earth, Support for external modems via PPP
4 x RS232 ports – Baud rates up to 115,200
PPS1 Pulse Per Second Output
ProtocolsReference outputs/inputs: CMR, CMR+, sCMRx, RTCM 2.1, 2.2, 2.3, 3.0, 3.1

Navigation outputs:
• Binary: Trimble GSOF
OtherAdvanced Trimble Maxwell 6 Custom Survey GNSS Technology
High precision multiple correlator for GNSS pseudorange measurements
Unfiltered, unsmoothed pseudorange measurements data for low noise, low multipath error, low time domain correlation and high dynamic response
Very low noise GNSS carrier phase measurements with <1 mm precision in a 1 Hz bandwidth
Proven Trimble low elevation tracking technology
Control Software: HTML web browser, Internet Explorer, Firefox, Safari, Opera, Google Chrome
Event Marker Input Support
Supports Fault Detection & Exclusion (FDE), Receiver Autonomous Integrity Monitoring (RAIM)
Minimum required LNA Gain with 5dB cable loss is 29.5 dB


ElectricalBD920: 3.3 V DC +5%/–3%, typical 1.3 W (L1/L2 GPS + L1/L2 GLONASS)
Antenna LNA Power Input: Input voltage: 3.3 V DC to 5 V DC, maximum current: 400 mA
Mechanical51 mm x 41 mm x 7 mm
TemperatureTemperature range (operation): -40 to +85°C
Temperature range (storage): -55 to +105°C
Humidity5% to 95% R.H. non-condensing, at +60°C
Weight24 grams
VibrationRandom 6.2 gRMS operating
Random 8 gRMS survival
±40 g operating
±75 g survival
Warranty1 Year

Ordering Details

BoardTrimble BD920 GNSS available in a variety of configurations from SBAS upwards

GPS Only:
60920-01 Trimble BD920 , All options disabled, requires upgrade to output positions
60920-02 Trimble BD920, GPS, L1 Autonomous/SBAS, 5Hz
60920-03 Trimble BD920, GPS, L1 Autonomous/SBAS, 20Hz
60920-04 Trimble BD920, GPS,L1 DGPS Base/Rover, 5Hz
60920-05 Trimble BD920, GPS, L1 DGPS Base/Rover, 20Hz
60920-07 Trimble BD920, GPS, L1 DGPS Rover, 20Hz
60920-08 Trimble BD920, GPS, L1RTK Base/Rover, 5Hz
60920-09 Trimble BD920, GPS, L1RTK Base/Rover, 20Hz
60920-11 Trimble BD920, GPS, L1RTK Rover, 20Hz
60920-12 Trimble BD920, GPS, L1/ L2 RTK Base/Rover, 5Hz
60920-13 Trimble BD920, GPS, L1/ L2 RTK Base/Rover, 20Hz
60920-14 Trimble BD920, GPS, L1/ L2 RTK Rover,5Hz
60920-15 Trimble BD920, GPS, L1/ L2 RTK Rover, 20Hz

60920-22 Trimble BD920, GPS,GLN L1 Autonomous/SBAS, 5Hz
60920-23 Trimble BD920, GPS, GLN,L1 Autonomous/ SBAS, 20Hz
60920-24 Trimble BD920, GPS,GLN,L1 DGPS Base/ Rover, 5Hz
60920-25 Trimble BD920, GPS,GLN, L1 DGPS Base/Rover, 20Hz
60920-27 Trimble BD920, GPS,GLN, L1 DGPS Rover, 20Hz
60920-28 Trimble BD920, GPS,GLN, L1RTK Base/Rover, 5Hz
60920-29 Trimble BD920, GPS,GLN, L1RTK Base/Rover, 20Hz
60920-31 Trimble BD920, GPS, GLN,L1RTK Rover, 20Hz
60920-32 Trimble BD920, GPS,GLN, L1/L2 RTK Base/ Rover,5Hz
60920-33 Trimble BD920, GPS,GLN, L1/L2 RTK Base/Rover, 20Hz
60920-34 Trimble BD920, GPS,GLN, L1/L2 RTK Rover,5Hz
60920-35 Trimble BD920, GPS,GLN, L1/L2 RTK Rover, 20Hz

60920-62 Trimble BD920, GPS,GLN,GAL, L1,E1 Autonomous/SBAS,5Hz
60920-63 Trimble BD920, GPS, GLN,GAL,L1,E1 Autonomous/ SBAS, 20Hz
60920-64 Trimble BD920, GPS,GLN,GAL,L1,E1 DGPS Base/Rover,5Hz
60920-65 Trimble BD920, GPS,GLN,GAL,L1,E1 DGPS Base/Rover, 20Hz
60920-68 Trimble BD920, GPS,GLN,GAL,L1,E1RTK Base/Rover,5Hz
60920-69 Trimble BD920, GPS,GLN,GAL,L1,E1RTK Base/Rover, 20Hz
60920-77 Trimble BD920, GPS,GLN, L1/L2 RTK Base/ Rover,GAL E1 20Hz
60920-90 Trimble BD920, GPS,GLN,GAL, L1/L2,E1 Heading Only Rover
Accessories87062-00 Trimble BD910/BD920 Evualation Kit
80476-00 Trimble BD910/920 Interface board
A02503 Pwr Sply,18V,3Ah
87273-01 Trimble BD920 Field Upgrade (contact us for details)
80464-00 BD910/920 80Pin Mating Connector