Communications

Сложность: LowВес на экзамене: Low

Обзор

Communications covers VHF and HF radio theory, radio wave propagation, communication procedures and phraseology, distress and urgency procedures, and the phonetic alphabet. This is generally considered the easiest ATPL subject with the highest average pass rates.

Ключевые темы

  • VHF radio characteristics and propagation
  • HF radio characteristics and propagation (skywave)
  • SELCAL and ACARS
  • Radio communication procedures and phraseology
  • Distress (MAYDAY) and urgency (PAN PAN) procedures
  • Communication failure procedures
  • Phonetic alphabet and number pronunciation
  • ATC communication structure
  • Emergency locator transmitters (ELT)
  • Datalink communications (CPDLC)

Советы по учёбе

Study this subject last — it is the quickest to prepare for

Listen to real ATC communications (LiveATC) to reinforce phraseology

Memorize the distress and urgency communication formats

Understand VHF line-of-sight limitations and how altitude affects range

Know the differences between VHF and HF propagation

Примеры вопросов

1. The correct distress call prefix is:

A. PAN PAN, PAN PAN, PAN PAN
B. MAYDAY, MAYDAY, MAYDAY✓ Правильно
C. EMERGENCY, EMERGENCY, EMERGENCY
D. SOS, SOS, SOS

2. VHF radio range is limited primarily by:

A. Transmitter power
B. Antenna type
C. Line of sight (Earth's curvature)✓ Правильно
D. Atmospheric absorption

3. The transponder code for radio communication failure is:

A. 7500
B. 7600✓ Правильно
C. 7700
D. 7000

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