Overview
This 3D Choke Ring RTK GPS/GNSS Antenna is a high-precision, full-band antenna designed for use in GNSS measurement systems. It covers a wide range of frequencies, including GPS L1/L2/L5, Beidou II B1/B2/B3, GLONASS L1/L2, and Galileo E1/E2/E5a/E5b/E6. The antenna features an advanced 3D choke design with an anti-multipath choke plate, making it suitable for CORS (Continuously Operating Reference Stations) networking. It is waterproof, anti-UV, and offers a stable phase center, high positioning accuracy, and the ability to receive low-elevation signals.
Key Features
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Multi-band ： |
Strong anti-interference performance ： |
RTK positioning accuracy： |
Good reliability： Lightning and waterproof design. |
Parameters
| Electrical performance index: | |
| Frequency Range (MHz) | 1559MHz~1605MHz，1160MHz~1300MHz |
| Polarization | Right-hand circular polarization |
| Gain (dBi) | Elevation 90°≥7 Elevation 20°≥0 Elevation 10°≥-3 |
| Axial Ratio (dB) | Elevation Angle 90°≤2 Elevation 15°≤5 |
| Front to Back Power (dB) | ±60°≥25 |
| Phase Center Error (mm) | ＜1 |
| LNA Gain (dB) | 42±2 |
| V.S.W.R | ＜2.0∶1 |
| Noise Figure (dB) | ＜2.0 |
| DC Voltage (V) | 3.3~18 |
| Current (mA) | ＜50 |
| Impedance (Ω) | 50 |
| Mechanical Specifications | |
| Connector Type | TNC-K |
| Dimensions (mm) | Φ380×304.2 |
| Relative Humidity | 90% |
| Operating Temperature (℃) | -45～+85 |
| Weight (kg) | 9.5 |
| Storage Temperature (℃) | -55～+85 |
| Operation Environment | Outdoor |
Application
3D Choke Ring Antenna can be widely used in reference station, base station, deformation monitoring, earthquake perdition.
