Optimizing geodetic antennas: Precision calibration and multi-path minimization

Geodetic quality antennas require a precise calibration, that estimates the phase centre offset at various frequencies (GPS L1, L2 and L5 are typical). In addition to the phase centre offset, the phase centre variation as a function of azimuth and elevation angle is also calibrated, enabling the observations to be adjusted correctly. Additionally, to minimize multi-path choke ring antennas may be a required option.

Land surveyor working with a GPS unit

Precision positioning: Enhanced coverage and signal quality

  • Accurate and precise positioning with Calian’s patented antenna technology
  • Multi constellation coverage to maximize the number of observations available for position and time estimation (GPS, QZSS, GLONASS, Galileo, and BeiDou)
  • Multi-signal and multi-band support
  • Multi-path mitigation and/or excellent axial ratio with choke ring option
Land surveyor working with a GPS unit

Advanced antenna features: Calibration, compatibility, and durability

  • Optional pre-filters to enhance out-of-band signal rejection
  • IGS and NGS calibrated antennas
  • Wide voltage range for broad receiver compatibility
  • Various Low Noise Amplifier (LNA) gain options to support long antenna cable runs
  • Strong electro-static discharge immunity
  • Rugged construction

Geodetic antennas

Single band


Dual band


Triple band




Starting your antenna selection? Our guide can help simplify your choice.

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