03 Communication Principles

Question 1

Speech rate on ATC?

Answer 1

100 words per minute.

Question 2

What to do if no responce?

Answer 2

Wait at least 10 seconds before repeating?.

Question 3

Standard time?

Answer 3

Coordinated Universal Time (UTC)

Question 4

What should a test message contain?

Answer 4

The call sign of the station being called. The aircraft identification.
The words ‘radio check’.
The radio frequency being used.

Question 5

Responder readability scales?

Answer 5

• Unreadable.
• Readable now and then.
• Readable but with difficulty.
• Readable.
• Perfectly readable

Question 6

Duplex communication?

Answer 6

Telecommunication between 2 stations that can take place in both directions simultaniously.

Question 7

Simplex communication?

Answer 7

Telecommunication between 2 stations in 1 direction at a time.

Question 8

Standard communication when initiated by the pilot?

Answer 8

• Ground station callsign
• Callsign
• Message

Question 9

Standard communciation when initiated by the station?

Answer 9

• Callsign
• Ground station callsign
• Message

Question 10

Morse code

Answer 10

Dots and Dashes: Each Morse code symbol consists of a sequence of dits (short signals) and dahs (long signals). The duration of a dah is three times that of a dit.
Spaces: Within an encoded character, each dit or dah is followed by a period of signal absence (a space) equal to the dit duration. Letters within a word are separated by a space equal to three dits, and words are separated by a space equal to seven dits.

Question 11

Test in morse code?

Answer 11

- . … -

Question 12

Test transmission structure?

Answer 12

• Station Call sign.
• Aircraft call sign.
• Radio Check.
• Frequency being used.