International Communication Standards Flashcards

Which ICAO document specifically governs the procedures and phraseology for aeronautical communications?

Answer: Doc 9432

ICAO Doc 9432, Manual of Radiotelephony, specifically governs standard phraseology and procedures for aeronautical communications.

When a controller needs to relay a message through another aircraft due to communication failure, the relaying aircraft should preface the message with:

Answer: '(Aircraft callsign) pass to (aircraft callsign)'

The relaying aircraft uses the phrase '(callsign) pass to (callsign)' to clearly identify the originator and intended recipient of relayed messages.

In ICAO standard phraseology, what does the word 'WILCO' communicate?

Answer: I will comply with your instructions

'WILCO' (will comply) confirms the pilot has received, understood, and will carry out the instructions given.

The SELCAL system is primarily used to:

Answer: Alert a flight crew of an incoming call on HF radio

SELCAL (Selective Calling) alerts a specific aircraft's crew when ATC initiates a call, allowing HF radio monitoring without continuous crew vigilance.

Under ICAO standards, when should time be included in a position report?

Answer: Always, in UTC

ICAO requires time in position reports to always be expressed in UTC to maintain standardized global coordination.

What is the correct ICAO phraseology when ATC wishes to verify that a pilot has set a specific altimeter setting?

Answer: 'Confirm QNH'

'Confirm QNH' is the standard ICAO phraseology used to verify the altimeter setting has been correctly received and set.

In international aviation, VHF voice communications between 118.000 MHz and 136.975 MHz are channeled at what spacing in most of the world today?

Answer: 8.33 kHz

8.33 kHz channel spacing is mandated in most ICAO member states to increase VHF spectrum capacity as traffic density grew.