Trimble BD990 Triple Frequency GNSS Receiver
The Trimble BD990 supports triple frequency for the GPS, GLONASS, BeiDou and Galileo constellations. As the number of satellites in the constellations grows the BD990 is ready to take advantage of the additional signals. This delivers the quickest and most reliable RTK initializations for centimeter positioning.
With the latest Trimble Maxwell 7 Technology, the BD990 provides:
- 336 Channels for multi-constellation GNSS support
- Trimble RTX and OmniSTAR Support
- Compact design for mobile applications
- Flexible RS232, USB and Ethernet interfacing
- Centimeter-level position accuracy
- Advanced RF Spectrum Monitoring
With the option of utilizing OmniSTAR or RTX services, the BD990 delivers varying levels of performance down to centimeter-level without the use of a base station.
GPS
 100990-01: Trimble BD990 , All options disabled, requires upgrade to output positions
 100990-02: Trimble BD990, GPS,MSS L1, Autonomous/SBAS, 20Hz
 100990-03: Trimble BD990, GPS,MSS L1, DGPS,MSS Base/Rover, 20Hz
 100990-04: Trimble BD990, GPS,MSS L1, RTK 1cm Base/Rover, 20Hz
 100990-05: Trimble BD990, GPS,MSS L1/L2/L5, Positions Limited to 30cm Rover,20Hz
 100990-06: Trimble BD990, GPS,MSS L1/L2/L5, Positions Limited to 10cm Rover,20Hz
 100990-07: Trimble BD990, GPS,MSS L1/L2/L5, RTK 1cm Rover,20Hz
 100990-08: Trimble BD990, GPS,MSS L1/L2/L5, RTK 1cm Base/Rover,20Hz
GPS GLONASS
 100990-22: Trimble BD990, GPS,GLN,MSS L1, Autonomous/SBAS, 20Hz
 100990-23: Trimble BD990, GPS,GLN,MSS L1, DGPS Base/Rover, 20Hz
 100990-24: Trimble BD990, GPS,GLN,MSS L1, RTK 1cm Base/Rover, 20Hz
 100990-25: Trimble BD990, GPS,GLN,MSS L1/L2/L5, Positions Limited to 30cm Rover,20Hz
 100990-26: Trimble BD990, GPS,GLN,MSS L1/L2/L5, Positions Limited to 10cm Rover,20Hz
 100990-27: Trimble BD990, GPS,GLN,MSS L1/L2/L5, RTK 1cm Rover,20Hz
 100990-28: Trimble BD990, GPS,GLN,MSS L1/L2/L5, RTK 1cm Base/Rover,20Hz
GPS GLONASS Galileo BeiDouÂ
 100990-62: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1, Autonomous/SBAS, 20Hz
 100990-63: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1, DGPS Base/Rover, 20Hz
 100990-64: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1, RTK 1cm Base/Rover, 20Hz
 100990-65: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1/L2/L5/E6, Positions Limited to 30cm rOVER, 20hZ
 100990-66: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1/L2/L5/E6, Positions Limited to 10cm Rover,20Hz
 100990-67: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1/L2/L5/E6, RTK 1cm Rover,20Hz
 100990-68: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1/L2/L5/E6, RTK 1cm Base/Rover,20Hz
 100990-88: Trimble BD990, GPS,GLN,GAL,BDS,MSS L1/L2/L5/E6, RTK 1cm Base/Rover,50Hz CN
