• Doppler VHF Omni-directional Range

  • The DVOR system transmits two signals, namely the reference phase signal and the variable phase signal, which are received and calculated the magnetic bearing by the airborne receiver relative to the ground VOR, indicating the flight direction for the aircraft and guiding the aircraft to fly along the scheduled course.

  • Applications

    • The VOR (VHF Omnidirectional Range) within the scope of an airport is used to secure the entry and exit of aircraft.
    • With two VORs, the positioning of linear position lines can be realized.
    • The VOR keeps the aircraft on course to ensure it flies along the course.
    • When VOR and the UHF distance measuring equipment (DME) are used together, the polar coordinate navigation system is formed to directly guide civil aviation aircraft.
    • The VOR can also be used as auxiliary equipment for instrument landing systems to ensure the aircraft can complete non-precision approach and landing.

    Specifications

    • Frequency Range: 108 MHz ~ 117.975 MHz
      Rated Output Power of RF Carrier: 100 W
      Carrier Frequency Stability: ±0.0005%
      Output Power Stability: +0.5 dB
      Carrier Suppression: 360 dB
      Upper/Lower Sideband Suppression: ≥50 dB
      Relative Variation of Carrier Sideband Output Power: ≤+0.20 dB
      Relative Variation of Upper/Lower Sideband Output Power: <±0.2 dB
      Mean Time to Repair (MTTR): ≥14,800 h

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