RTK GNSS Heading Board TOP982-4949
Introduction● Small size, light weight, easy integration, small volume, high-precision Heading module TOP982-4238Features● Based on the new generation GNSS SoC - NebulasIV, which integrates RF, baseba
Introduction
Key Features
49mm ×49mm
Supports all-constellation multi-frequency on-chip RTK positioning and dualantenna heading solution
Supports BDS B1I/B2I/B3I + GPS L1/L2/L5 + GLONASS L1/L2 + Galileo E1/E5a/E5b+ QZSS L1/L2/L5 + SBAS
Dual-RTK engine technology
Adaptive recognition of RTCM input data format
Dual antenna input
Supports UART+RS232
Performance
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 |
Performance Specications
| 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 | ||||
Physical Characteristics
| Data Port | UART*3+RS232 1.25 6PIN |
| Dimension | 49 × 49 mm |
| Weight | 8g |
Environmental Specifications
| Working temperature | -40°C~+85°C |
| Storage Temperature | -55°C~+95°C |
Communication Interface
| 3× UART+RS232 | |||||
| 1 × EVENT | |||||
1 × PPS |