VNet Series GNSS CORS System
The AT-45101CP GNSS Choke Ring Antenna is a high-precision, full-band GNSS antenna engineered for CORS stations, deformation monitoring, geodetic surveying, and long-term structural monitoring. With exceptional multipath suppression, sub-millimeter phase center stability, and support for all major GNSS constellations—including L-Band—it delivers unmatched accuracy, reliability, and performance in demanding environments.
Description
The AT-45101CP GNSS Choke Ring Antenna is a premium, high-performance GNSS antenna designed for mission-critical precision positioning and monitoring applications. Engineered with a unique 3D choke ring structure, it provides outstanding multipath rejection, superior signal purity, and industry-leading phase center stability—making it ideal for CORS stations, bridge and building deformation monitoring, geological surveying, and other long-baseline, high-accuracy workflows.
With full-band support for GPS, GLONASS, BeiDou, Galileo, QZSS, NAVIC, SBAS, and L-Band, the AT-45101CP ensures reliable tracking of all available satellite signals, delivering robust position integrity even in challenging radio-frequency environments. The antenna’s RHCP polarization, low noise figure, and high gain performance across wide operating frequencies enable consistent, stable signal reception for real-time kinematic (RTK), network RTK, and PPP applications.
Built with precision at its core, the AT-45101CP offers sub-millimeter phase center offset, ensuring highly repeatable results in both static and dynamic measurements. The integrated low-noise amplifier (LNA) provides up to 45dB of gain, exceptional out-of-band interference suppression, and stable operation in proximity to cellular towers and other RF sources.
Constructed using a rugged IP67-rated shell, the antenna withstands harsh weather, humidity, vibration, and extreme temperatures ranging from –45°C to +85°C, allowing long-term, maintenance-free deployment in remote stations or severe outdoor environments. The large 377mm × 271mm structure ensures maximum performance for scientific, survey, and monitoring projects requiring the highest possible accuracy.
Whether used for CORS networks, structural monitoring, land deformation detection, or precision geodetic measurements, the AT-45101CP GNSS Choke Ring Antenna provides the reliability, precision, and long-term stability demanded by modern surveying and scientific applications.
Additional information
| General | Model: AT-45101CP Product Type: High-Precision GNSS Choke Ring Antenna Applications: CORS stations Bridge deformation monitoring Building and structure monitoring Geological and seismic monitoring Geodetic surveying Long-baseline positioning Scientific research Polarization: Right-Handed Circular Polarization (RHCP) |
|---|---|
| Signal Tracking | Supported Systems: GPS: L1, L2, L5 GLONASS: G1, G2, G3 BeiDou: B1, B2, B3 Galileo: E1, E5a, E5b, E6 QZSS NAVIC SBAS L-Band |
| Antenna Performance | Maximum Gain: ≥7 dBi Antenna Axis Ratio: <2 dB Pass-Band Ripple: ≤2 dB VSWR: ≤2 Differential Propagation Delay: ≤5 ns Phase Center Offset: ≤±1 mm Elevation Coverage: 360° |
| Frequency Range | Lower Band: 1160 MHz – 1300 MHz Upper Band: 1521 MHz – 1621 MHz |
| LNA Performance | LNA Gain: 45 dB ± 3 dB Noise Figure: ≤2 dB Working Voltage: 3 – 16 VDC Power Consumption: ≤45 mA |
| Environmental | IP Rating: IP67 Operating Temperature: –45°C to +85°C Storage Temperature: –55°C to +85°C Humidity: 95% |
| Physical | Connector Type: TNC Dimensions: Φ377 mm × 271 mm Weight: 5000 g |
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