SYS - Communication Systems

Question 1

How many VHF radios?

Answer 1

2

Question 2

Where is the back up VHF radio control panel?

Answer 2

Front cockpit right side

Question 3

Where does standby VHF radio get power from? (2)

Answer 3

• battery bus (through COMM2 CB), or aux battery bus

Question 4

Difference between FAIL1 and FAIL2 on standby comm control panel?

Answer 4

FAIL 1 means complete system failure. FAIL 2 means only a transmitter failure,

Question 5

How do a hardware failsafe shutdown on standby VHF if their is a fault?

Answer 5

Hold power button for 12-15 sec then power up again.

Question 6

Can ground crew plug in a headset?

Answer 6

Yes?

Question 7

When is ground crew interrupted powered?

Answer 7

Either battery or aux battery is on

Question 8

What does ST knob on audio control panel control?

Answer 8

Side tone for VHF

Question 9

What does HDPH switch control?

Answer 9

Headset volume

Question 10

What does V, Both, ID switch control?

Answer 10

Voice, both, or morse code for VHF navigation sources

Question 11

What does EMR/NRM switch control?

Answer 11

Bypasses the amplifier in EMR (emergency) mode for raw audio in event of amplifier failure

Question 12

What frequency must be selected to do marker beacon test and what is displayed?

Answer 12

A localise frequency must be selected and it displays OM-IM-MM on PFD