YW-18182G3 GPS Module Ordering Information
1. Core Specifications
| Option Category | Available Choices |
| Satellite Systems | - GPS (L1 C/A)
- GPS + GLONASS
- GPS + Galileo
- GPS + BeiDou
- Multi-constellation (All systems) |
| Positioning Accuracy | - Standard: 2.5m (SBAS) / 5m (autonomous)
- High-Precision: <1m (RTK/PPK)
- Sub-meter (with DGPS) |
| Channels | 72 channels or customized |
2. Performance & Sensitivity
| Option Category | Available Choices |
| Update Rate | - 1Hz (default)
- 5Hz/10Hz (navigation)
- 20Hz/50Hz (drone/racing) |
| TTFF | - Cold start: ≤30s
- Hot start: ≤1s
- A-GPS assisted: ≤5s |
| Sensitivity | - Tracking: -165dBm to -162dBm
- Acquisition: -148dBm to -160dBm |
3. Interfaces & Communication
| Option Category | Available Choices |
| Data Interface | - UART (9600/115200 bps)
- I2C/SPI
- USB 2.0/3.0
- CAN bus (automotive) |
| Protocols | - NMEA 0183 (default)
- UBX (u-blox binary)
- RTCM 3.x (RTK) |
| Wireless Connectivity | - Bluetooth/BLE
- Wi-Fi
- 4G LTE (with GNSS+cellular modules) |
4. Power & Environmental
| Option Category | Available Choices |
| Operating Voltage | - 3.3V (low-power)
- 5V (industrial)
- Wide range: 2.7V–5.5V |
| Power Consumption | - Active: 25mA–50mA
- Sleep: <1mA
- Supercapacitor backup (optional) |
| Temperature Range | - Commercial: -20°C to +70°C
- Industrial: -40°C to +85°C
- Automotive: -40°C to +105°C |
5. Antenna Options
| Option Category | Available Choices |
| Antenna Type | - Passive ceramic patch (embedded)
- Active external (SMA/FAKRA)
- Magnetic mount |
| Antenna Gain | - Standard: 28dB
- High-gain: 35dB (for weak signals) |
6. Certifications & Compliance
| Option Category | Available Choices |
| Certifications | - FCC/CE/RoHS/Country-specific Professional Certification |
7. Additional Features
| Option Category | Available Choices |
| Data Logging | - Built-in flash (4MB–32MB)
- MicroSD slot |
| Firmware Upgrades | - OTA (Wi-Fi/cellular)
- USB/UART local update |
| Special Functions | - Geofencing
- Dead reckoning (DR)
- Anti-jamming (military-grade) |
Key Advantages of TCXO in GPS/GNSS Modules
1. Higher Frequency Stability
Standard XO: Prone to frequency drift due to temperature changes (typical stability: ±10–100 ppm).
TCXO: Uses temperature compensation to minimize drift (typical stability: ±0.5–5 ppm).
Impact on GPS Module:
Faster Time-To-First-Fix (TTFF) and reduced timing errors.
Improved positioning accuracy, especially in dynamic or extreme-temperature environments.
2. Better Weak-Signal Performance
TCXO’s low phase noise enhances the module’s ability to decode weak satellite signals.
Use Cases:
Urban canyons, indoor navigation (e.g., shared bikes, car trackers).
Mission-critical applications (drones, emergency beacons).
3. Superior Temperature Resistance
Standard XO: Performance degrades in extreme heat/cold, causing positioning drift or signal loss.
TCXO: Maintains stability across a wide range (-40°C to +85°C), ideal for:
Industrial equipment (e.g., RTK surveying devices).
Automotive/aerospace applications with large temperature swings.
4. Precision Timing Synchronization
Critical for:
Cellular base stations (5G synchronization).
Financial timestamping (nanosecond-level accuracy).
TCXO reduces PPS (Pulse-Per-Second) jitter, ensuring reliable timekeeping.
5. Power Efficiency & Long-Term Reliability
While TCXO consumes slightly more power (1–5 mA) than XO, its stability reduces frequent signal reacquisition, saving energy overall.
Lower aging rate (e.g., ±1 ppm/year) extends module lifespan.
TCXO vs. Standard XO: Quick Comparison
| Feature | TCXO | Standard XO |
| Frequency Stability | ±0.5–5 ppm | ±10–100 ppm |
| Temperature Range | -40°C to +85°C (stable) | Sensitive to temperature |
| Weak-Signal Handling | Excellent | Poor |
| Cost | Higher (+20–50%) | Low |
| Typical Use Cases | High-precision applications (surveying, drones) | Consumer devices (basic navigation) |
When to Choose a TCXO GPS Module?
High-precision positioning (e.g., autonomous vehicles, RTK surveying).
Harsh environments (outdoor industrial use, automotive).
Time-critical systems (5G networks, financial infrastructure).
Weak-signal scenarios (urban/indoor navigation).
For cost-sensitive, low-accuracy applications (e.g., simple GPS trackers, smartwatches), a standard XO module may suffice.
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High Accuracy GNSS GPS Module with Utilizes Industrial-grade Temperature-compensated Crystal Oscillator TCXO and Better Positioning Performance Images
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