As a full-constellation GNSS module, UM980 tracks GPS, BDS, GLONASS Galileo and QZSS for stable satellite signals. Embedded multi-frequency anti-jamming technology and enhanced RTK engine solution significantly improve RTK initialization speed, accuracy and reliability in complex environments such as urban blocks and tree shade.
Measuring only 17mm x 22mm x 2.6mm, with a 54-pin surface mount design and low power consumption of 480mW, the UM480 can be easily embedded into most devices. In addition, the abundant interfaces of UART, I2C and SPI, industry-standard data formats & protocols of UM480 provides huge possibilities for user integrations.
SATELLITE TRACKING
Channels: 1408
BDS: B1I, B2I, B3I, B1C, B2a, B2b1
GPS: L1 C/A, L1C1, L2P(Y), L2C, L5
GLONASS: L1, L2
Galileo: E1, E5a, E5b
QZSS: L1, L2, L5
PERFORMANCE
Cold start: <30 s
RTK Initialization Time: <5 s (typical)
RTK initialization reliability: >99.9%
Re-acquisition: <1s
ACCURACY
Standalone:
- 1.5m Horizontally
- 2.5m Vertically
DGPS:
- 0.4m Horizontally
- 0.8m Vertically
RTK:
- 8mm+1ppm Horizontally
- 15mm+1ppm Vertically
Velocity Accuracy: 0.03m/s
Time Accuracy: 20ns
DATA FORMAT
Data output format:
- NMEA-0183
- Binary format
Data update rate: Up to 50Hz2
Correction data format: RTCM v3.3/3.2/3.1/3.0
COMMUNICATIONS
UART × 3
I2C3 × 1
SPI3 × 1, slave
CAN3 × 1, shared with UART3
ELECTRICAL
Voltage: +3.0 V~+3.6 V DC
Power consumption: 480 Mw (typical)
PHYSICAL
Dimensions: 22 × 17 × 2.6 mm
Hardware interface: 54 pin LGA
Weight: 1.88 g ±0.03 g
ENVIRONMENTAL
Working temperature: -40 ℃ to + 85 ℃
Storage temperature: -55 ℃ to + 95 ℃
Humidity: 95% no condensation
Vibration: GJB150.16-2009，MIL-STD-810
Shock: GJB150.18-2009，MIL-STD-810
1. The B2b and L1C are reserved for future upgrade.
2. 50Hz is supported after firmware upgrade.
3. I2C, SPI, CAN: Reserved interfaces.
