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(Airframe)Aircraft Avionics System > Nav Comm Section 1 part3 > Flashcards

Nav Comm Section 1 part3 Flashcards

1
Q

What is the purpose of the audio panel?

A

Switches microphones and speakers for multiple nav comm radios

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2
Q

What is the purpose of the Automatic Direction Finder?

A

Navigation points to station

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3
Q

What type of antenna is required for the ADF?

A

Loop- directional

Sense- cancel out the wall

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4
Q

What is the purpose of the VHF Omni Range system?

A

Navigation

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5
Q

Between ADF & VOR, which will give you the magnetic direction to or from a tuned radio station?

A

An ADF (Automatic Direction Finder) will provide you with the magnetic direction to or from a tuned radio station

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6
Q

Between the ADF & VOR, which will give you the direction of a tuned radio station in relation to the aircraft, but not weather you are heading toward or away from the station?

A

VOR- antenna

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7
Q

What is the purpose of the DME?

A

Distance measuring

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8
Q

What is Area Navigation?

A

RNAV, radio interprets multiple stations to give a direct route to destination

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9
Q

Besides VOR, what other system must be used for the RNAV?

A

DME

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10
Q

What is Long Range Navigation?

A

Loran- has one master station and 2 slaves stations sends signals in timed sequence

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11
Q

What is Global Positioning System used for?

A

Precise navigation

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12
Q

What is an Internal Navigation System?

A

Uses gyros accelerometer and a navigation computer to sense movement

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13
Q

What is the advantage of the INS system over the other types of navigation systems?

A

Completely self contained

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14
Q

What is the purpose of the Instrument Landing System?

A

To land in poor visibility

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15
Q

What is the purpose of the localizer portion of the ILS?

A

Provides directional guidance

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16
Q

What is the purpose of the glideslope portion of the ILS?

A

To provide elevation guidance

17
Q

What is the purpose of the marker beacon portion of the ILS?

A

Provides distance information from airport

18
Q

How does an aircraft know that it is to the left or the right of the runway centerline?

A

The needle swings to the right of left and it will pick up either 150hz (blue) or 90hz (yellow) and calculate differences

19
Q

How does the ILS know that an aircraft is above or below the glideslope?

A

The needle shows higher or lower than reference line will pick up either 150hz (blue) or 90 hz (yellow) and calculates differences

20
Q

What are the three marker beacons used & approximately how far are they from the runway?

A

Outer marker- 5 miles (blue light)

Middle marker- 1/2 mile (amber)

Inner marker- runway (white light)

(Airframe)Aircraft Avionics System (12 decks)

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