Communications Flashcards

1
Q

What is the RMS controlled through?

A

2 RMUs
1 TBCH
3 DAPs

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2
Q

What does the RMS manage?

A
Dual VHF
Dual VHF Nav
Dual ADF
Dual Transponder
TCAS
Dual DME
DAPs (3)
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3
Q

What does the RMS provide?

A

Communication and Navigation resources

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4
Q

What does the RMS consist of?

A

Integrated Nav Unit
Integrated Com Unit -
(both remote mounted)

2 RMUs
1 TBCH
3 DAPs
(Cockpit Mounted)

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5
Q

What does the VHF/NAV receiver in the INU do?

A

Houses all major nav functions of VOR / LOC

The GS receives 40 channels of GS info

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6
Q

What does the DME Transceiver in the INU do?

A

It is a 6 channel DME, simultaneously tracks 2 selected channels for distance, groundspeed and time to station info

  • monitors 2 channels for ID
  • dedicated 2 for FMS
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7
Q

What does the ICU do?

A

Provides audio signals to the DAP

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8
Q

Name the two modules of the ICU

A

VHF

MODE S

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9
Q

What does the Nav Backup page display?

A
HSI
Marker Beacon
DME
NAV (VOR)
ADF
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10
Q

Can the maintenance page be used in flight?

A

No

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11
Q

When does the RMS perform a self test?

A

Each time power is applied on ground after shutdown of more than 10s

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12
Q

What is the time scale for Com to be operational and then the remaining equipment after power up?

A

Com within 7 seconds

Remainder within 50 seconds

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13
Q

What is disables with the loss of a Radio System Bus (RSB)?

A

Cross side operation and input

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14
Q

If DAP loses power what mode must be selected?

A

EMER

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15
Q

What is the TBCH for?

A

Alternative means of tuning COM 2 / NAV 2

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16
Q

How long does the CVR keep a transcript before overwriting?

A

2 hours

17
Q

Is there a backup power supply for ACARS?

A

No

18
Q

How many uplink and downlink messages can ACARS store?

A

25 uplink

70 downlink