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Choke ring antenna / GNSS
The Leica AR20 Visionary 3D Choke Ring Antenna is created and produced for stable and semi-permanent reference network installations that can meet all the standards for dependable and long-term antenna. It is future proof for all GNSS satellite signals and offers excellent tracking function with the use of different depth and width choke rings. The precision design operates for very low and permanent phase center offsets with very smooth symmetry of the phase center variations versus azimuth and elevation. It has exceptional multipath performance with a great axial ratio at low elevations that provides greater multipath rejection through all GNSS frequency bands including L5, thanks to the new 3D inside design. On the other hand, its traditional 2D choke ring designs are enhanced only for specific frequency band.