Product overview
UM982C supports dual-antenna heading and can operate as a rover or a base station.
The manual identifies UAVs, precision agriculture and autonomous robots as applications for the module.
I2C, SPI and CAN are reserved interfaces and are not supported.
Specifications
| Specification | Value & conditions |
|---|---|
| Reserved interfaces | I2C, SPI and CAN are not supportedThese interfaces are reserved on UM982C. |
| Model | Unicore UM982C; all-constellation, multi-frequency GNSS positioning and heading module |
| Channels and processor | 1408 channels; NebulasIV |
| Tracked signals by antenna | Master: GPS L1C/A, L2P(Y), L2C, L5; BDS B1I, B3I, B2a, B2b; GLONASS G1, G2; Galileo E1, E5a, E5b, E6; QZSS L1C/A, L1C/B, L2C, L5, L6; L-Band. Slave: GPS L1C/A, L2C; BDS B1I, B3I; Galileo E1, E5b; QZSS L1C/A, L2C; no GLONASS or L-BandBDS B2b and L-Band require specific firmware. |
| Positioning and heading modes | On-chip RTK; dual-antenna heading; dual RTK engine with independent positioning from master/slave antenna GNSS raw observations |
| Additional positioning services | STANDALONE single-station positioning; B2b-PPP; E6-HAS; QZSS L6E (MADOCA) PPP; SouthPAN L5 PVS; QZSS L6D (CLAS) PPP-RTK; TruePoint|REACH Sat L-band-based PPP-ARTruePoint|REACH Sat L-band-based PPP-AR is a paid service. |
| Interference protection | Anti-jamming and anti-spoofing; jamming and spoofing detection |
| Interfaces | 3 × UART; 1 × SPI; 1 × I²C; 1 × CAN; PPS; EVENTSPI, I²C and CAN require specific firmware; CAN shares UART3. |
| Single-point positioning accuracy | Horizontal: 1.5 m; vertical: 2.5 mRMS. |
| DGPS accuracy | Horizontal: 0.4 m; vertical: 0.8 mRMS. |
| RTK accuracy | Horizontal: 0.8 cm + 1 ppm; vertical: 1.5 cm + 1 ppmRMS. |
| PPP accuracy | Horizontal: 5 cm; vertical: 10 cmRMS; at 20 min; under open sky and without jamming. |
| PPP-AR accuracy | Horizontal: 3 cm; vertical: 6 cmRMS; at 5 min; under open sky and without jamming. |
| CLAS accuracy | Horizontal: 5 cm; vertical: 10 cmRMS; at 1 min; under open sky and without jamming. |
| Observation accuracy | Code: 10 cm; carrier phase: 1 mm across all listed entriesRMS; listed observation groups: B1I/L1 C/A/G1/E1, B2I/L5/E5a/E5b, B3I/L2P(Y)/L2C/G2; table columns: BDS, GPS, GLONASS, Galileo. |
| Heading accuracy | 0.1°1 m baseline. |
| Time accuracy | 20 ns |
| Velocity accuracy | 0.03 m/sRMS. |
| Time to first fix | Cold start: less than 30 s; hot start: less than 4 sCold start and hot start, respectively. |
| Initialization time | Less than 5 sTypical. |
| Initialization reliability | Greater than 99.9% |
| Data update rate | 20 HzRTK + heading. |
| Differential data | RTCM V3.X |
| Data formats | NMEA 0183; Unicore |
| Package | 48-pin LGA |
| Dimensions | 16.0 × 21.0 × 2.6 mm |
| Weight | 1.82 ± 0.03 g |
| Temperature ranges | Operating: -40°C to +85°C; storage: -55°C to +95°COperating and storage, respectively. |
| Humidity | 95%No condensation. |
| Vibration standards | GJB150.16A-2009; MIL-STD-810F |
| Shock standards | GJB150.18A-2009; MIL-STD-810F |
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