Communications COMM Flashcards
Describe the Flight Interphone System.
- Permits communication between the Cpt., FO, 3rd occupant and ground personnel
- Requires use of the INT (Transmission and reception volume) controls on the ACP
Describe the Cabin Interphone System
- Permits communication between flight deck and cabin
2. Requires use of the CAB (Transmission and Reception/volume) controls on ACP
Describe the Service Interphone System.
- Permits communication between flight deck and exterior maintenance receptacles
- Requires use of CAB(Transmission and Reception/volume) controls on the ACP
What’s the purpose of the Radio Management Panels (RMPs)?
Used to select and tune all communications radios, SELCAL and standby navigation radios.
What is the purpose of the ACPs?
- Selection of radios for Transmission and Reception
- Volume
- PA Transmission
- Filtering of Morse code signals from NAVAID Reception
What is the function of each position of the INT/RAD switch.
(Pic)
- INT - allows hands free (hot mic) Transmission on the flight Interphone System through a headset boom or oxy mask microphone
- Neutral - requires use of side stick trigger for transmission
- RAD - (spring loaded) allows Transmission on a selected radio
What is the function of the AUDIO SWITCHING Selector?
Pic
- Permits selection of ACP 3 by either pilot if their ACP has failed
- When CAPT 3 or F/O 3 is selected, AUDIO 3 XFRD appears in memo section of the E/WD
Does using the ACP 3 affect either RMPs operation?
Nope
What are the indications of SELCAL?
Pic
- CALL flashes in Amber within the respective communication radio Transmission keys (VHF 1/2/3 or HF 1/2)
- Buzzer sounds on flight deck
What are the indications when receiving a Transmission from the Mechanic?
(Pic)
- MECH flashes in Amber within the INT transmission keys
- Buzzer sounds on flight deck
- Light goes out after 60 seconds if it is. It reset
What are the indications when receiving a transmission from Cabin Crew?
(Pic)
- ATT flashes in Amber within the CAB transmission keys
- Buzzer sounds in cockpit
- Light goes off after 60 seconds if not reset
What will pressing RESET on an ACP do?
Pic
It will extinguish a flashing CALL, MECH, or ATT light
How are flightdeck oxy masks microphones activated and deactivated?
(Pic)
- Activation -
A. By opening the masks storage compartments left hand door
B. A white OXY ON flag indicates that the microphone is enabled - De-activate -
A. Closing respective left hand door and then PRESS TO TEST AND RESET button
Which microphones are available and to who?
Captain
FO
3rd occupants oxy mask
The 4th occupant doesn’t get an operational oxy mask microphone
What are the two methods to make a PA?
Pic
- Pressing and holding the PA Transmission key on the ACP and speaking into the respective headset boom or oxy mask
- Using the headset mounted at rear section of the central pedestal