Which of the following navigation aid frequency may be used for broadcasting the ATIS?
Automatic terminal information service (ATIS). The automatic provision of current, routine information to arriving and departing aircraft throughout 24 hours or a specified portion thereof:
Voice-automatic terminal information service (Voice-ATIS). The provision of ATIS by means of continuous and repetitive voice broadcasts.
ICAO Annex 11 - Air Traffic Services
CHAPTER 4. FLIGHT INFORMATION SERVICE
4.3.4 Voice-automatic terminal information service (Voice-ATIS) broadcasts
4.3.4.1 Voice-automatic terminal information service (Voice-ATIS) broadcasts shall be provided at aerodromes where there is a requirement to reduce the communication load on the ATS VHF air-ground communication channels.
4.3.4.2 A discrete VHF frequency shall, whenever practicable, be used for Voice-ATIS broadcasts. If a discrete frequency is not available, the transmission may be made on the voice channel(s) of the most appropriate terminal navigation aid(s), preferably a VOR, provided the range and readability are adequate and the identification of the navigation aid is sequenced with the broadcast so that the latter is not obliterated.
4.3.4.3 Voice-ATIS broadcasts shall not be transmitted on the voice channel of an ILS.
ATIS (Automated Terminal Information Service) is a continuous broadcast of recorded information in busier airports. The primary purpose of ATIS is to reduce the controller workload and provide pilots with essential information about the airport and its immediate surroundings.
- In order to receive the Voice-ATIS, the pilot has to tune a given VHF frequency. When it is not practical to have an extra frequency available for the Voice-ATIS, it may be broadcasted through the VOR frequency.
Note: The frequency of the VOR is used to tune the VOR and receive bearing information. At the same time, a Morse code identifier is heard in order to ensure that the correct VOR is tuned. At this frequency, the Voice-ATIS might be included as well.
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