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The ANK45-2 is a high-precision, multi-frequency RTK GNSS module featuring a next-gen RF baseband and advanced positioning engine. Equipped with a dual-core CPU, RTK co-processor, and anti-interference technology, it supports 1408 channels for superior satellite signal processing. Ideal for applications such as drones, precision agriculture, and surveying, it ensures reliable positioning in complex environments.
Product Features
Based on the high-performance JS-N2 module
Supports 1408 super channels
Enables multi-system, multi-frequency high-precision RTK positioning algorith m
RTK positioning data update rate of up to 20Hz
Supports BDS B1I/B2I/B3I,GPS L1/L2/L5,GLONASS L1/L2, Galileo E1/E5a/E5b, QZSS L1/L2/L5,and SBAS
Adaptive recognition of RTCM format differential input
Integrated high-gain antenna
Integrated TCXO,LNA,SAW, and RTC
Supports antenna signal detection
Compact and lightweight (45.0x45.0x12.7mm ±0.3mm),<40g
Rich hardware interfaces supporting multiple configurations, including optional UART and RS232
Instant RTK initialization technology
Performance Specifications
| Performance | Technical Parameters |
| Constellation & Bands | BDS: B1I, B2I, B2I, B3I |
| GPS: L1C/A, L2P (Y)/L2C, L5 | |
| GLONASS: L1, L2 | |
| Galileo: E1, E5a, E5b | |
| QZSS: L1, L2, L5 | |
| Time to First Fix | Cold start <30 s |
| Time Accuracy (RMS) | 20 ns |
| Velocity Accuracy | 0.03 m/s |
| Initialization Time | < 5 s (typical) |
| Baud Rate | 9600–921600 bps (default 115200 bps) |
| Max Data Update Rate | 20 Hz |
Pin Assignment
| No. | Name | I/O | Description |
| 1 | GND | - | ground |
| 2 | TX2/SDA | O | UART2 output (default) / I2C data |
| 3 | RX2/SCL | I/O | UART2 input (default) / I2C clock |
| 4 | PPS | I/O | Pulse per second |
| 5 | GND | I/O | Ground |
| 6 | TX1 | O | UART1 data output |
| 7 | RX1 | I | UART1 data input |
| 8 | VCC | P | Power supply voltage |
Application Fields
Drones.Surveying and mapping
Automotive applications
Smart robots
Precise agriculture
Smart ports
Shared vehicles
Power grid and electricity
Logistics and security
Intelligent transportation
Protocols
| Parameter | Protocol |
| Data Format | NMEA 0183, Unicore |
| Differential Data | RTCM3.X |
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