CHOKE RING ANTENNA
The eSurvey UA91 adopts a high-gain broadband antenna to receive GNSS signals such as GPS, BDS, GLONASS, Galileo, IRNSS, QZSS, and L-Band. The scheme of multi-stage 3D choke coils with a symmetrical distribution is adopted to achieve higher phase center stability and excellent anti-multipath interference performance. It has excellent performance and the phase center coincides with the mechanical center.
- Powerful Satellite Tracking Capacity: Obtain all available and reliable data sources, with total channels and all signals (GPS, BDS, GLONASS, GALILEO, IRNSS, QZSS, and SBAS) of GNSS tracking.
- Temperature Performance: The UA91 works in the range of temperatures from -55°C to +85°C, and stores in -55°C to +90°C.
- High Phase Center Accuracy: Experience millimeter phase center accuracy with higher stability.
- Rugged Design for Harsh Environments: Use it for many years with IP67 design, which is 95% protected against solid objects like dust and sand, and it has been tested to work for at least 30 minutes under 15 cm to 1 m of water.
- Excellent Multipath Suppression Effect: Due to the unique 3D choke coil design and electrostatic protection against 8 kV of air and 4 kV of static electricity, no longer a need to worry about interference by multipath.
- High Gain: The UA91 uses a high-gain wide-band dual-band multimode GNSS measuring antenna to achieve coverage of the GNSS signal reception.
Technical Specifications / Features
- High-gain broadband GNSS antenna
- Multi-stage 3D choke coil with symmetrical distribution
- Phase center coincides with mechanical center
- Supports GPS, BDS, GLONASS, Galileo, IRNSS, QZSS, L-Band, SBAS
- Operating temperature: -55°C to +85°C
- Storage temperature: -55°C to +90°C
- IP67 protection: dust and water resistant (up to 1m for 30 minutes)
- Electrostatic protection: 8 kV air, 4 kV static