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What type of signal is used for aeronautical radio communication?
  • A
    Amplitude modulation and UHF.
  • B
    Frequency modulation and UHF.
  • C
    Amplitude modulation and VHF.
  • D
    Frequency modulation and VHF.
The Aeronautical Mobile Service voice communication refers to the VHF and HF voice communication with amplitude modulation. VHF is normally used and HF is used only for long distances.

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