XX Chipset WT-11-UN Precision GNSS Module For GPS+GLONASS+BDS Satellite Positioning
Key Features
- High-performance multi-constellation GNSS module with GPS, GLONASS, and BeiDou support
- Precision positioning for navigation, surveying, and mapping applications
- Compact 9.7mm * 10.1mm * 2.4mm form factor
- Low power consumption (21mA @3.0V)
- Wide voltage range (1.65V to 3.6V)
- Configurable update frequency (1Hz-18Hz)
- Multiple interface options including UART, TTL, I2C, and SPI
Front view of WT-11-UN GNSS module
Technical Specifications
General Parameters
| Attribute | Value |
| Type | GNSS Module |
| Brand | OTW |
| Chipset | XX |
| Operating Mode | GPS+GLONASS+BDS |
| Output Mode | UART+TTL+R232 |
| Baud Rate | 4800bps-921600bps (Default 9600bps) |
| Update Frequency | 1Hz-18Hz (default 1Hz) |
| Voltage | 1.65V to 3.6V |
| Power Consumption | 21mA @3.0V |
| Size | 9.7mm * 10.1mm * 2.4mm |
Receiver Performance
| Parameter | Specification |
| Receiver Type | GPS/QZSS: L1C/A, Galileo: E1-B/C, GLONASS: L1OF, BeiDou: B1 |
| Protocol | NMEA-0183 compliant or custom protocol |
| Sensitivity | Tracking: -167dBm, Capture: -158dBm, Cold start: -148dBm |
| Startup Time | Cold start: 26s (average), Hot start: 1s (average) |
| Positioning Accuracy | Horizontal: <2.0m (with SBAS) |
Performance characteristics of WT-11-UN module
Physical Characteristics
| Parameter | Value |
| Package Type | 18PIN LCC |
| Dimensions | 9.7mm * 10.1mm * 2.4mm (±0.5mm) |
| Operating Temperature | -40℃ to 85℃ |
| Storage Temperature | -40℃ to 125℃ |
| Humidity Range | 5% to 95% non-condensing |
Interfaces
- 2 * UART ports
- 1 * I2C interface
- 2 * SPI interfaces
Pinout diagram of WT-11-UN module
Side view of WT-11-UN GNSS module
Typical application diagram