AO53-1 is a high-precision RTK positioning module supporting BDS, GPS, GLONASS, Galileo, QZSS, and SBAS across full systems and frequencies. Powered by a next-gen GNSS SoC with a dual-core CPU, RTK co-processor, and 1408 channels, it delivers 100 Hz RTK output for exceptional speed and accuracy. With advanced multi-frequency anti-interference and enhanced RTK algorithms, it ensures reliable performance even in challenging environments—ideal for UAVs, precision agriculture, and surveying.
Product Features
Based on high-performance GNSS SoC chip
Supports 1408 super channels
Supports high-precision RTK positioning solution for all system and frequency points
Up to 20Hz RTK positioning data update rate
Support BDSB1I/B2I/B3I/B1C/B2a/B2b+GPS L1/L2/L5+GLONASS L1/L2+Galileo E1/E5a/E5b/E6+QZSS L1/L2/L5/L6+SBAS
Support AGPS
Compact size (54.3mm x35.0mm×10.7mm±0.5mm) suitable for space-sensitive applications
Instant RTK initialization technology
Independent tracking of each satellite frequency point and 60dB narrowband anti-interference technology
Performance
| Parameters | Technical Parameters |
| Constellation frequency point | GPS:L1C/A, L1C, L2C, L2PY, L5 BDS:B1I, B1C, B2a, B2I, B2b,B3I GLONASS:L1CA, L2CA, L2P, L3 CDMA Galileo:E1, E5a, E5b,E6 QZSS:L1C/A, L1C/B, L2C, L5, L61 |
| Time of first fix | Cold start 20s |
| Time accuracy (RMS) | 10ns |
| Speed Accuracy(RMS) | 0.03m/s |
| initialization time | <5s (typical value) |
| Baud Rate | 115200- 230400bps (Default 115200bps) |
| Max navigation update rate | 20Hz (Default 1Hz) |
Pin Parameters
| No. | Name | I/O | Description |
| 1 | NC | O | NC |
| 2 | VCC | I | main power |
| 3 | NC | O | NC |
| 4 | NC | - | NC |
| 5 | RESET | - | reset |
| 6 | NC | - | NC |
| 7 | NC | - | NC |
| 8 | EVENT | - | event trigger |
| 9 | NC | - | NC |
| 10 | GND | G | land |
| 11 | TXD3 | O | UART3 output |
| 12 | RXD3 | I | UART3 input |
| 13 | GND | G | land |
| 14 | TXD2 | O | UART2 output |
| 15 | RXD2 | I | UART2 input |
| 16 | GND | G | land |
| 17 | TXD1 | - | UART1 output |
| 18 | GND | G | land |
| 19 | PPS | O | 1PPS output |
| 20 | RXD1 | - | UART1 output |
Product Application
Drones
Automotive applications
Precision agriculture
Maritime navigation
Logistics security
Surveying and mapping
smart robot
Smart Port
Grid power
Smart transportatio
Protocols
| Parameter | Protocol |
| Data Format | NMEA 0183 |
| Differential data | RTCM3.3/3.2/3.1/3.0 |
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