Shenzhen Youwei Communication Co., Ltd.
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Parameters of YW-16124G3 GPS Module
| Item | Parameters |
| Model No. | YW-16124G3 |
| Chip | As per order |
| Frequency | Customizable, for instance: L1, L2, L5 L1+L2, L1+L5, B1 + B2a, G1 + G3 |
| Number of Channels | As per order |
| Positioning Accuracy | 2m to 10m, customizable |
| Velocity | 515 m/s |
| Velocity Accuracy | Without aid : 0.1m/s DGPS: 0.05m/s |
| TTFF | Hot start: 1 second typical Warm start: 28 seconds typical Cold start: 30 seconds typical |
| Sensitivity | Tracking Sensitivity: -162 dBm Acquisition Sensitivity: -160 dBm typical Cold Start:-147dBm |
| Baud Rate | 9600 bps (default) |
| Max Navigation Update Rate | 1Hz (default), maximum 10Hz |
| Timing Accuracy | 25 ns RMS |
| Interface Options | UART, I2C, SPI, USB |
| Data Output Format | NMEA 0183 |
| Power Supply | 3.3V ~ 5V |
| Power Consumption | Typical 30mA acquisition, 24mA tracking |
| Working Temperature Range | -40°C to 85°C |
| Antenna Type | patch ceramic antenna |
| AGPS | Supported |
| Dimension | 16*12*4mm |
| Package Type | SMD |
| White label | Available |
Supported Bands (typically one is selected):
L1 Band
Frequency: 1575.42 MHz
Systems: Supported by GPS (USA), GLONASS (Russia), Galileo (EU), and BeiDou (China).
Features: Basic positioning, low cost, low power consumption, suitable for consumer devices (e.g., car navigation, smartphones).
L2 Band
Frequency: 1227.60 MHz
Systems: GPS L2C, GLONASS G2.
Features: Used in military and some high-precision civilian applications; better multipath resistance than L1.
L5 Band
Frequency: 1176.45 MHz
Systems: GPS L5, Galileo E5a, BeiDou B2a.
Features: Designed for aviation and life-critical applications; stronger signal, suitable for dynamic environments (e.g., drones, emergency rescue).
Common Combinations (supports two bands simultaneously):
L1 + L5
Advantages:
L1 for basic positioning, L5 for improved accuracy (1–3 meters) and anti-interference.
Ideal for high-dynamic scenarios like car navigation and shared bikes.
L1 + L2
Advantages:
L2 helps eliminate ionospheric errors, achieving sub-meter accuracy.
Commonly used in surveying and agricultural machinery (e.g., RTK base stations).
L1 + B1 (BeiDou)
Frequency: B1 = 1561.098 MHz
Advantages: Optimized for BeiDou compatibility, enhancing positioning in the Asia-Pacific region.
Multi-System Dual-Band (e.g., GPS L1 + Galileo E5)
Advantages: Increases satellite availability, improving reliability in challenging environments (e.g., urban canyons).
Accuracy Requirements:
Single-band (L1): 5–10 meters error (consumer-grade).
Dual-band (L1/L5): 1–3 meters error (high-precision applications).
Cost & Power Consumption:
Single-band modules are cheaper and more power-efficient.
Dual-band modules cost 30%–50% more with higher power usage.
Regional Support:
Europe: Prefer Galileo E1/E5.
China: Prefer BeiDou B1/B2.
| Band Type | Application Scenarios | Example Devices |
| Single-band (L1) | Car navigation, smartphones | Basic dash cams, shared bike locks |
| Dual-band (L1/L5) | Drones, ADAS (advanced driving) | drones, Tesla Autopilot |
| Dual-band (L1/L2) | Surveying, precision agriculture | RTK terminals, tractors |
