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Latest small volume GNSS heading module TOP982
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Small size, light weight, easy integration, small volume, high-precision Heading module TOP982-4238
Features
● Based on the new generation GNSS SoC - NebulasIV, which integrates RF, baseband, and high precision algorithm
42 x 38 mm ultra small volume
UART1+UART2 data ports
● Supports all-constellation multi-frequency on-chip RTK positioning and dual-antenna heading solution
● Supports GPS L1/L2/L5 + BDS B1I/B2I/B3I + GLONASS G1/G2 + Galileo E1/E5a/E5b + QZSS L1/L2/L5 + SBAS
● Dual-RTK engine
● Adaptive recognition of differential data input in RTCM format
Channel | 1408 channels, based on NebulasIV |
| Frequency | GPS: L1C/A, L2P (Y), L2C, L5 |
BDS: B1I, B2I, B3I | |
| GLONASS: G1, G2 | |
Galileo: E1, E5a, E5b | |
| QZSS: L1, L2, L5 |
| Single Point positioning(RMS) | Horizontal: 1.5m | ||||
| Vertical: 2.5m | |||||
| DGPS (RMS) | Horizontal: 0.4m | ||||
| Vertical: 0.8m | |||||
| RTK (RMS) | Horizontal: 0.8cm+1ppm | ||||
| Vertical: 1.5cm+1ppm | |||||
Observation Accuracy (RMS) | BDS | GPS | GLONASS | Galileo | |
B1I/L1 C/A/G1/E1 code | 10cm | 10cm | 10cm | 10cm | |
B1I/L1C/A/G1/E1 carrier phase | 1mm | 1mm | 1mm | 1mm | |
B2I/L5/E5a/E5b code | 10cm | 10cm | 10cm | 10cm | |
B2I/L5/E5a/E5b carrier phase | 1mm | 1mm | 1mm | 1mm | |
B3I/L2P(Y)/L2C/G2 code | 10cm | 10cm | 10cm | 10cm | |
B3I/L2P(Y)/L2C/G2 carrier phase | 1mm | 1mm | 1mm | 1mm | |
| Heading accuracy (RMS) | 0.1°/1m baseline | ||||
| Time accuracy (RMS) | 20 ns | ||||
| Velocity accuracy (RMS) | 0.03 m/s | ||||
| Cold start | <30s | ||||
| Initialization time | <5s (typical) | ||||
| Initialization reliability | >99.9% | ||||
Data update rate | Dual antenna 20 Hz | ||||
| 20 Hz raw data output | |||||
Differential data | RTCM V3.X | ||||
Data Format | NMEA-0183, Unicore | ||||
| Data Port | UART*2 1.25 4PIN |
| Dimension | 42 × 35 mm |
| Weight | 8g |
| Working temperature | -40°C~+85°C |
| Storage Temperature | -55°C~+95°C |
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| 3× UART (LVTTL) | |||||
| 1 × I2C* | |||||
1 × PPS |