Key Features:
- Trimble Maxwell 7 Technology
- 336 Channels for multi-constellation GNSS support
- OmniSTAR/RTX Support
- EMI shielded module
- Compact design for mobile applications
- Flexible RS232, USB and Ethernet interfacing
- Centimeter level position accuracy
- Advanced RF Spectrum Monitoring
Multi constellation / Multi frequency GNSS
The Trimble® BD940 supports both triple
frequency from the GPS and GLONASS
constellations plus dual frequency from BeiDou
and Galileo. As the number of satellites in the
constellations grow the BD940 is ready to
take advantage of the additional signals. This
delivers the quickest and most reliable RTK and
RTX initializations for centimeter positioning.
For applications that do not require centimeter
accuracy the BD940 contains an advanced
kalman filter PVT engine that delivers high
accuracy GNSS, DGNSS positions in the most
challenging environments
Different configurations of the module are
available. These include everything from
an autonomous GPS L1 unit all the way to a
four constellation triple frequency RTK unit.
Choose the receiver that suits your application
and price point. All features are passwordupgradeable,
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 safety-critical
applications.
Compact full metal jacket design
The Trimble BD940 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 BD940 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.
Trimble Maxwell 7 Technology
Industry professionals trust Trimble embedded
positioning technologies as the core of their
precision applications. With the latest Trimble
Maxwell™ 7 Technology, the BD940 provides
assurance of long-term future-proofing and
trouble-free operation. Moving the industry
forward, the Trimble BD940 redefines high
performance positioning :
- 336 Tracking Channels
- Trimble Everest Plus multipath mitigation
- Advanced RF Spectrum Monitoring and Analysis
- Proven low-elevation tracking technology
Flexible Interfacing
The Trimble BD940 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.
Les caractéristiques produits sont en anglais pour respecter les données du fournisseur.
Technical specifications1
- Trimble Maxwell 7 Technology
- 336 Tracking Channels:
- GPS: L1 C/A, L2E, L2C, L5
- BeiDou: B1, B2
- GLONASS: L1 C/A, L2 C/A, L3 CDMA13
- Galileo2: E1, E5A, E5B, E5AltBOC
- IRNSS: L5
- QZSS: L1 C/A, L1 SAIF, L2C, L5, LEX
- SBAS: L1 C/A, L5
- MSS L-Band: OmniSTAR, Trimble RTX
- High precision multiple correlator for GNSS pseudorange measurements
- Trimble Everest Plus multipath mitigation
- Advanced RF Spectrum Monitoring and Analysis
- 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
- Reference outputs/inputs
- CMR, CMR+, sCMRx, RTCM 2.1, 2.2, 2.3, 3.0, 3.112, 3.2
- Navigation outputs
- ASCII: NMEA-0183 GSV, AVR, RMC, HDT, VGK, VHD, ROT, GGK, GGA, GSA, ZDA,
VTG, GST, PJT,PJK, BPQ, GLL, GRS, GBS and Binary: Trimble GSOF, NMEA2000
- 1 Pulse Per Second Output
- Event Marker Input Support
- Supports Fault Detection & Exclusion (FDE), Receiver Autonomous Integrity Monitoring
(RAIM)
Communication
- 1 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 UDP
- NTripCaster, NTripServer, NTripClient
- mDNS/uPnP Service discovery
- Dynamic DNS
- Email alerts
- Network link to Google Earth
- Support for external modems via PPP
- RDNIS Support
- 2 x RS232 ports
- Control Software: HTML web browser, Internet Explorer, Firefox, Safari,
Opera, Google Chrome
- 1 CAN Port (requires addition of CAN Transceiver by customer)
Performance specifications
- Time to First Fix (TTFF)7
- Cold Start8 : <45 seconds
- Warm Start9 : <30 seconds
- Signal Re-acquisition : <2 seconds
- Velocity Accuracy3 , 4
- Horizontal : 0.007 m/sec
- Vertical : 0.020 m/sec
- Maximum Operating Limits10
- Velocity : 515 m/sec
- Altitude 18,000 m
- 1 CAN Port (requires addition of CAN Transceiver by customer) : +/- 11g
- RTK initialization time3 : typically <8 seconds
- RTK initialization reliability3 : >99.9%
- Position Latency5 : <20ms
- Maximum Position/Attitude Update Rate : 50 Hz
Physical and electrical characteristics
- Size : 51 mm x 41 mm x 7 mm
- Power : 3.3 V DC +5%/-3%
Typical 1.4 W (L1/L2 GPS + L1/L2 GLONASS)
Typical 2.2 W (L1/L2/L5 GPS/GLONASS/BeiDou/Galileo)
- Weight : 27 grams
- Connectors
- I/O : 80 pin Narrow Pitch Panasonic Socket
- GNSS Antenna : MMCX receptacle
- Antenna LNA Power Input
- Input voltage : 3.3 V DC to 5 V DC
- Maximum current : 400 mA
- Minimum required LNA Gain : +32.0 dB
Environmental characteristics11
- Temperature
- Operating : –40 °C to +75 °C
- Storage : –55 °C to +85 °C
- Vibration : MIL810F, tailored
Random 6.2 gRMS operating
Random 8 gRMS survival
- Mechanical shock : MIL810D
±40 g 10ms perating
±75 g 6ms survival
- Operating Humidity : 5% to 95% R.H. non-condensing, at +60 °C
1 Trimble BD940 is available in a variety of software configurations. Specifications shown reflect full capability.
2 Developed under a License of the European Union and the European Space Agency.
3 May be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is
continuously monitored to ensure highest quality.
4 1 sigma level, when using Trimble Zephyr 2/3 antennas, add 1 ppm to RTK Position accuracies.
5 At maximum output rate.
6 GPS only and depends on SBAS System performance. FAA WAAS accuracy specifications are <5 m 3DRMS.
7 Typical observed values.
8 No previous satellite (ephemerides / almanac) or position (approximate position or time) information.
9 Ephemerides and last used position known
10 As required by the U.S. Department of Commerce to comply with export licensing restrictions.
11 Dependent on appropriate mounting/enclosure design.
12 Input only network correction
13 There is no public GLONASS L3 CDMA. The current capability in the receivers is based on publicly available
information. As such, Trimble cannot guarantee that these receivers will be fully compatible.
14 Trimble RTX and OmniSTAR accuracies depend on correction service chosen. Trimble CenterPoint RTX provides
<4cm horizontal accuracy 95% of the time with initializations of less than 30 minutes.
15 Also available in configurations with RTK accuracies limited to 10 and 30 centimeters