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What are the modulation signals which can be found on a VOR frequency?
  • A
    Navigation, voice (ATIS) and identification
  • B
    Navigation, GP and identification
  • C
    Voice (R/T) and identification
  • D
    Navigation and voice (ATC)

062.02.03.01.05 - State that automatic terminal information service (ATIS) information is transmitted on VOR frequencies.


The VOR (Very High Frequency Omni-directional range) is a navigation aid used widely in instrument flying.

Identification of VOR

Each time a pilot intends to use a VOR, identification of the station is necessary to confirm full operational serviceability of the navigation aid Steps for VOR equipment navigation:

Tune VOR frequency on VHF/NAV display

Identify VOR by ID function of VHF/NAV and radio panel

Set up appropriate onboard instrument

Some VOR stations situated on airport sites have the capability to transmit Automatic Terminal Information Service (ATIS) messages. In these cases, the aerodrome does not have a communication frequency allocated for ATIS but the audible identification channel delivers the message.

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