Communications Flashcards
Is PA system available on battery power?
Yes! Powered on Battery Bus
Where are the audio systems for the flight deck located?
E/E bay
What is the purpose of the ALT-NORM switch on the ACP?
a. NORM- ACP is operating normally
b. ALT- ACP operates in degraded mode, hard wires ACP to onside VHF radio (ACP3 to VHF1)
The Push-To-Talk switch, when toggled, transmits on which transmitter?
Whatever is selected
What does the Service Interphone switch do?
ties in external jacks
What does the VHF TEST switch do?
Removes Auto squelch feature allowing background noise and potentially aiding reception of weak
signals
What is the indication of tuning the offside Radio Tuning Panel (RTP)?
Offside Tuning (White) Light
What failure messages display on the RTPs, and what do they mean?
FAIL/FAIL: The selected radio has failed, PANEL/ FAIL: RTP has failed.
What considerations should be made before keying the HF radio on the ground?
Do not key the HF Radio while the aircraft is being fueled/defueled or with aft service door open
What is the priority of source selection in the data mode?
VHF, SAT, HF
What is the notification of an incoming SAT phone call?
Selcall Chime, repeated after 16s, Blue Sat 1/2 call lgt.
How is communication established using the oxygen mask?
Select Speaker audio and use MASK/BOOM sw on ACP
How can the flight deck alert the ground crew?
GRD CALL switch (overhead panel) sounds horn in nose wheel well.
How can a PA be made? Which ACP, hand mic, or interphone has priority?
Flight Deck has highest priority, use ACP (boom, oxymask, hand held mic). Hand Mic has priority
What does the ATTEND button do?
Two tone chime in the pax cabin and illuminates both pink master call lights.
