11.5.2 Specific Flashcards
What 3 communication systems can modern aircraft be divided into?
. Aircraft communications
. Radio communications
. Accident investigations
What is the purpose of static discharge?
Continuously discharge static electricity to prevent build up of high voltages on fuselage
How many VHF and HF systems does the aircraft have?
3 VHF
2 HF
What does the flight interphone system do?
Communicates between the cockpit and crew members
What is purpose of passenger address system?
Gives information to passengers
What is the priority of the PA?
. Cockpit
. Cabin crew
. Pre recorded
. Boarding music
What does a high chime attention getter mean?
Sounds when a passenger calls the cabin crew
What does a high- low chime attention getter mean?
When one crew wants another crew
What does a low chime attention getter mean?
Fasten seat belts and no smoking signs
What does CVR stand for and why do we have one?
Cockpit voice recorder
Helps in accident investigations
What are the two different voice recorders?
. Analogue tape recorder
. Digital solid state recorder
How many separate in our channels does the CVR have?
4
What is the VHF communication system used for?
For short distance voice and data communication with ground station or other aircraft’s
What’s the HF communication system used to?
Long distance communication
What’s the VHF frequency?
118 to 136.975mHZ
What do modern aircraft rely on for long distance communications?
SATCOM system
How many independent HF systems are on a long range aircraft?
2
What are the 3 components of a HF system?
. Transceiver
. Antenna
. Antenna coupler
Where is the transceiver located?
In avionics compartment
Where is the antenna located?
In the leading edge of vertical stabiliser
Where is the antenna couple installed?
Near the antenna
What does ACARS do?
Data link communication system
Transfers messages and data between aircraft and ground
Who starts manual reports?
Pilots, airline ground staff and ATC
What does SATCOM provide?
Reliable worldwide digital data transfer
What is SATCOMS 3 main components?
. Satelliates
. Aircraft earth stations
. Ground earth stations