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Topcon CR-G5-C

Topcon CR-G5-C

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The CR-G5-C is a choke ring antenna with cavity filter based on Topcon’s TA-5 full spectrum GNSS antenna element.

The TA-5 antenna element utilizes an array of vertical convex dipoles. This antenna provides Full Wave tracking technology for existing and future GNSS signals.

The antenna addresses the evolving requirements for reference networks and infrastructure monitoring applications.


  • High-end Geodetic Antenna
  • Topcon’s TA-5 vertical convex dipole antenna element for full spectrum GNSS signal tracking
  • Cavity filter mitigates near band jamming
  • Topcon designed choke ring groundplane
  • Improved phase center stability in vertical over expanded GNSS frequency band. Improved low elevated satellites tracking
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  • Technical Specifications
  • Downloads
  • Video
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  • Operating Frequency Range

    • Lower band: 1160...1300 MHz (E5a, L5, E5b, G3, B2, E3, L2, G2, E4, B3, E6)
    • Upper band: 1540...1610 MHz (E2, B1, L1, B1-2, E1, G1, SBAS)

    Out of Band Rejection (typical)

    • Lower band (1090...1370 MHz): -60 dBc
    • Upper band (1510...1670 MHz): -60 dBc
    • f < 1050 MHz: -80 dBc
    • f > 1700 MHz: -80 dBc

    Gain, Noise Figure and VSWR

    • LNA Gain: 43 dB (typical)
    • Gain at Zenith (minimum): Lower band: 7.5 dB (typical) Upper band: 5 dB (typical)
    • Gain Roll-Off (typical): Lower band: 16.5 dB Upper band: 13 dB
    • Noise Figure: 1.0 dB (typical)
    • VSWR: ≤ 1.5 : 1
    • Differential Propagation Delay: 4 ns (typical)
    • Nominal Impedance: 50 Ohm


    • Temperature: Operating: -50ºC to 85ºC Storage: -55ºC to 85ºC
    • Water / Dust Rating: IP67 IEC 60529
    • Humidity: 95%
    • RoHS Compliant: Yes


    • Input Voltage: 3.3 to 12 VDC
    • Power Consumption: 100 mA (typical)


    • Dimensions (d x h): 380 x 155.5 mm (antenna without anti-snow dome) 380 x 292 mm (with Topcon anti-snow spherical dome) 415 x 287 mm (with SCIGN short dome)
    • Weight: 5.3 kg (antenna) 1.1 kg (Topcon anti-snow spherical dome) 6.4 kg (antenna with Topcon anti-snow spherical dome) 1.8 kg (SCIGN short dome) 7.1 kg (antenna with SCIGN short dome)
    • Connector: N-type female
    • Mount: 5/8-11 UNC-2B thread
  • Product Downloads Section