Chapter 3 Communication Principles Flashcards
What must be done before transmitting on frequency?
Listen out
What is the word rate that must be spoken?
Not in excess of 100WPM
What is the structure of a communication initiated by ATC?
Callsign, ATC station, message
What is the structure of a communication in response to a call initiated by ATC?
Read back/ response and then callsign
What is the format of a message initiated by a pilot?
Station, callsign, message
What is the structure of a response by ATC to a call initiated by a pilot?
Callsign, station and message
When are single digits used?
Callsigns, flight levels, headings, wind direction and speed, transponder codes, runways and altimeter settings*
- = some exceptions
What are the exceptions to single digits?
Whole numbers/thousands
When do not all of the digits of a frequency have to be read back?
When the final two digits are both zero
When are hours and minutes both transmitted?
When confusion is possible
What are time checks nearest to?
To the nearest half minute
When is the word immediately used?
Used when immediate action is required for safety reasons
Outline the readability scale
1 = unreadable 2 = readable now and then 3 = readable with difficulty 4 = readable 5 = perfectly readable
