UM4B0 is an all-constellation all-frequency RTK positioning module based on the high-performance high-precision SoC - NebulasII, which is developed by Unicore Communications. It supports multiple satellite signals, including BDS B1I/B2I/B3I/B1C/B2a, GPS L1/L2/L5, GLONASS L1/L2, Galileo E1/E5a/E5b and QZSS L1/L2/L5. UM4B0 has adopted narrowband anti-jamming technology. It is mainly applied in the field of light-weight robots, GIS, intelligent driving, UAV,etc.
Based on multi-system multi-frequency high-performance SoC - NebulasII, with 432 super channels
Support BDS, GPS, GLONASS, Galileo and QZSS, including Beidou-3 signal
30x40 mm, small size all-system all-frequency RTK positioning SMD module
Instantaneous RTK initialization and support long baseline RTK solution
Adaptive recognition of differential data RTCM format, support antenna signal detection
60dB narrowband anti-jamming, support multi-path suppression technology
Support UART, 1PPS, Event and other physical interfaces
Compact SMD packaging
All-Constellation Multi-Frequency
Firmware quick update and iteration
Rich and Flexible Evaluation Kits and Softwares
Proven - Products have been widely applied in worldwide projects, a leading choice for Intelligent Drive, Robots, UAV,etc
"UGypsophila" RTK technology
Better than 1s RTK reacquisition
"RTKKEEP" Technology
Adaptive recognition of RTCM
Channels | 432 channels,based on Nebulas-II chip | Observation Accuracy(RMS) | BDS | GPS | GLONASS | Galileo |
Frequency | BDS B1/B2/B3 | B1/L1(C/A)/E1 Code | 10cm | 10cm | 10cm | 10cm |
GPS L1/L2/L5 | B1/L1/E1 Carrier Phase | 1mm | 1mm | 1mm | 1mm | |
GLONASS L1/L2 | B2/L2P(Y)/L2C/E5b Code | 10cm | 10cm | 10cm | 10cm | |
Galileo E1/E5a/E5b | B2/L2p(Y)/L2C/E5b Carrier Phase | 1mm | 1mm | 1mm | 1mm | |
GLONASS L1/L2 | B2/L2P(Y)/L2C/E5b Code | 10cm | 10cm | 10cm | 10cm | |
B3/L5/E5a Carrier Phase | 1mm | 1mm | 1mm | 1mm | ||
Single point positioning | Horizontal:1.5 m | Initialization time | < 5 s (typical) | |||
Vertical:2.5 m | Initialization reliability | > 99.9% | ||||
DGPS(RMS) | Horizontal:0.4 m | Reacquisition | < 1 s | |||
Vertical:0.8 m | Correction | RTCM v2.3/3.0/3.2 | ||||
RTK(RMS) | Horizontal:10 mm + 1 ppm | Data Output | NMEA-0183,Unicore Binary | |||
Vertical:15 mm + 1 ppm | Update Rate | 20 Hz | ||||
Velocity Accuracy (RMS) | 0.03 m/s | Positioning rate | 20 Hz | |||
Time to First Fix (TTFF) | Cold start < 25 s | Time accuracy (RMS) | 20 ns | |||
Hot start < 10 s | Dead Reckoning Error | <5% of distance travelled during GPS denied conditions | ||||
Network Protocol | NTRIP、TCP/IP |
Size | 30 × 40 × 4 mm |
Weight | 9.2 g |
3x UART(LV-TTL) | 1x1PPS(LV-TTL) |
1xEvent input |
Temperature | Working: -40℃~+85℃ |
Storage: -55℃~+95℃ | |
Humidity | 95% No condensation |
Vibration | GJB150.16-2009,MIL-STD-810 |
Shock | GJB150.18-2009,MIL-STD-810 |
Voltage | 3.3 VDC +5%/–3% |
LNA | 4.75~5.0 V, 0~100 mA |
Ripple Voltage | 100 mV p-p(max) |
Power Consumption | 1.8 W (typical) |