22. EU ACFT - Aircraft Communication Equipment Flashcards

1
Q

What is the civil VHF communications spectrum? (1)

A

118.000 to 136.975 Mhz

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2
Q

Factors affecting DOC (Designated Operational Coverage) of a VHF station (6)

A
  • Position of Transmitter
  • Power of Transmitter
  • Altitude of Recipient
  • Local Terrain (Line of Sight)
  • Environmental / Meteorological Phenomena
  • Consider transferring aircraft to another frequency with better coverage as aircraft travels along its route or changes flight profile
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3
Q

Other means of communication (6)

A
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4
Q

3 types of emergency squawks (3)

A

7700 Emergency
7600 Radio Failure
7500 Hijack/ Unlawful interference

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