YH-901 employs multi-arm, multi-feed technology, supporting GPS L1/L2/L5 GLONASS L1/L2/L3 BDS B1/B2/B3 Galileo E1/E5/E6 and L-band satellite navigation signal reception. It features built-in pre-filters, low-noise amplifiers, and final-stage filters, providing excellent out-of-band suppression and strong anti-interference capabilities, ensuring normal operation even in harsh electromagnetic environments. It meets the current requirements for multi-system compatibility and high-precision measurement.
RTK GNSS Antenna YH-901
Helical antenna YH-901 is suitable for applications where size and weight are critical, such as drones, micro RTK, and portable devices like sub-meter level handheld devices/tablets.
- Overview
- Key Features
- Parameters
- Related Products
Overview
Key Features
1. Use multi-arm spiral technology ensures right-hand circular polarization and phase center performance, reducing the impact of measurement errors.
2. Antenna element features high gain and low gain roll-off, resulting in good reception of satellite signals at low elevation angles.
3. Pre-filtering, sophisticated low-noise, high-gain amplification, and excellent out-of-band rejection.
4. Small size, light weight, easy to carry and install.
Parameters
| Product Parameters | |
| PERFORMANCE | |
| Patch Architecture | Quadrifilar Helix |
| Supported Positioning Signal Bands | GPS: L1/L2/L5 GLONASS: L1/L2/L3 BDS: B1/B2/B3 Galileo: E1/E5/E6 L-band |
| Peak Gain* | ≥2.5 dBi |
| Polarization | RHCP |
| Axial Ratio@zenith | ≤1.5dB |
| Azimuth Coverage | 360° |
| Impedance | 50 ohm |
| LNA | |
| Frequency Range | 1164MHz~1278MHz 1525MHz~1615MHz |
| LNA Gain* | 35±3.0dB （Typ. @25°C） |
| Group Delay Variation | ≤5ns |
| Noise Figure* | ≤1.8 dB@25°C, Typ. |
| Output VSWR | 1.8:1 typ. 2.0:1max |
| Operating Voltage | 3.0~16V DC |
| Operating Current | ≤45mA |
| MECHANICALS & ENVIRONMENTAL | |
| Dimension | Φ40.2*40.8mm |
| Connector | SMA-J |
| Radome | ABS+PC |
| Weight | ≤32g |
| Attachment Method | Through connector or 3 screw holes on the bottom |
| Operating Temp | -40℃～+85℃ |
| Storage Temp | -45℃～+85℃ |
| Humidity | 95% Non-condensing |
| Waterproof | IP67 |
Applications
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