The YM-251Q is capable of fast and accurate positioning in weak signal areas such as cities, canyons, and under elevated viaducts, as well as inside the car.
It can be widely used in UAVs, unmanned vehicles, crossing machines, vehicle monitoring, bus station announcements, vehicle navigation, ship navigation, notebook navigation, driving recorders, and other products that need to be positioned.
GPS positioning antenna integrated module YM-251Q
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- Overview
- Key Features
- Parameters
- Related Products
Overview
Key Features
Multi-GNSS Fusion & Flexible Positioning Modes
Supports GPS, BDS, Galileo, GLONASS, QZSS, and SBAS systems, allowing flexible selection of positioning modes (single-mode or multi-mode combination) based on project needs. This multi-system integration ensures superior navigation stability and broader signal coverage.
Compact & Lightweight Design
Boasts a miniaturized size of 25mm×25mm×7.8mm (±0.3mm) and a lightweight of 11g, paired with a high-performance small-volume antenna. The compact structure retains full functionality, making it ideal for small traversers, light fixed-wing UAVs, and other space-constrained devices.
Strong Star-Search Performance & Weak Signal Adaptability
Equipped with a T-antenna network design with 50Ω impedance matching and antenna VSWR <1.5, maximizing signal reception efficiency. With high sensitivity (-166dBm for tracking & navigation) and fast startup (1s hot start), it achieves fast and accurate positioning even in weak signal environments like cities, canyons, under elevated roads, and inside vehicles.
High-Precision Data Output & Versatile Applications
Delivers precise data including 1.5m CEP horizontal position accuracy, 0.05m/s velocity accuracy, and 30ns RMS time pulse accuracy, providing detailed latitude, longitude, speed, and time information. Widely applicable to UAVs, unmanned vehicles, vehicle monitoring, ship navigation, etc., with stable operation in -40°C to +70°C and storage tolerance of -55°C to +85°C.
Parameters
|
Receiver type |
GPS/QZSS L1C/A SBAS EGNOS, GAGAN, MSAS and WAAS GLONASS L1OF BDS B1I Galileo E1B/C |
|
Sensitivity |
Tracking & Navigation -166dBm Reacquisition -160 dBm Cold Start -148 dBm |
|
Start time |
Cold Start 26S Hot Start 1S |
|
Horizontal Position accuracy |
1.5 m CEP |
|
Velocity accuracy |
0.05 m/s |
|
Accuracy of time pulse signal |
RMS 30ns 99% 60ns |
|
Operational limits |
Dynamics ≤ 4g Altitude 80000 m Velocity < 500 m/s |
|
Frequency of time pulse signal |
1 Hz |
|
Baud Rate |
4,800–460,800 bps default 38400 bps |
|
Max navigation update rate |
Up to 10 Hz, default 1 Hz |
|
Output level |
TTL level |
|
Output protocol |
NMEA-0183, UBX |
Physical Characteristics & Working environment:
|
Compact size |
25 mm * 25 mm * 7.8 mm (± 0.3 mm) |
|
Working voltage |
3.6-5.5V Typical 5V |
|
Working current |
40mA@5.0V |
|
Weight |
11g |
|
Juncture |
1.0 mm 6-pin |
|
Operating temperature (℃) |
-40-+70 |
|
Storage temperature (℃) |
-55-+85 |
|
Pilot lamp |
The blue light is always on and flashing after 3D positioning |
Applications
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