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High-performance GNSS choke ring antenna optimized for reference station applications

The C220GR2 is a high-performance GNSS choke ring antenna optimized for reference station (CORS) and GNSS RTK network applications.

The C220GR2 offers multi-constellation GNSS tracking, sub-millimetre phase centre accuracy, exceptional multipath rejection and high stability to ensure reliable GNSS performance over time.

  • C220GR2
CHC Navigation | CHCNAV
599 Gaojing Road, Building D
201702 Shanghai
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The CHC GNSS antenna series provides a high-accuracy and cost-effective solution to demanding positioning applications such as geodetic reference station, marine survey, machine control, GIS and mapping when both performances and reliability are required. It offers:

  • Multi-constellation GNSS tracking
  • Sub-millimeter phase center accuracy
  • Exceptional multipath rejection


  • Type
    Land, Marine
  • Height [m]
  • Depth [m]
  • Total Weight [kg]
  • Certifications
    IP67 waterproof and dustproof, protected from temporary immersion to depth of 1 m, MIL-STD-810G standard
  • Housing and finish material
    Copper alloy
  • Design keywords
    Geodetic Antenna, Rugged, High vibration resistant, Choke ring
  • Operating temperature: min. [°C]
  • Operating temperature: max. [°C]
  • Water sand and dust proof
    IP67 waterproof and dustproof
  • Shock and vibration proof
    MIL-STD-810G standard
  • Min. operating power [V]
  • Max. operating power [V]
  • Connection/cable for power
  • Tracked satellite signals
    GPS, GLONASS, Galileo, BeiDou, SBAS
  • Type of GPS measurements
    L1, L2, L5
  • Type of GLONASS measurements
    L1, L2, L3
  • Type of Galileo measurements
    E1, E2, E5, E6
  • Type of Beidou measurements
    B1, B2, B3
  • Type of SBAS measurements
  • Signal gain [dB]
  • Amplifier
  • TNC female
  • Distinguishable features
    Multi-constellation GNSS tracking, sub-millimeter phase center accuracy an exceptional multipath rejection

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