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EASA facts and figures COPY > Radio Navigation > Flashcards

Radio Navigation Flashcards

1
Q

At what distance would you find an Inner Marker on an ILS?

A

75 m - 450 m

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2
Q

At what distance would you find a middle Marker on an ILS?

A

900 m - 1200 m

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3
Q

At what distance would you find an outer Marker on an ILS?

A

6.5 km - 13 km

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4
Q

What is the typical frequency for an Airbourne Weather Radar?

A

9.375 GHz

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5
Q

What is the modulating frequency (AF) and cockpit light colour of an ILS inner marker?

A

3000 Hz, white

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6
Q

What is the modulating frequency (AF) and cockpit light colour of an ILS middle marker?

A

1300 Hz, Amber

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7
Q

What is the modulating frequency (AF) and cockpit light colour of an ILS outer marker?

A

400 Hz, Blue

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8
Q

What is the coverage angle and distance of a localizer?

A

10 degrees either side of the centreline, up to 25 nm

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9
Q

What is full-scale deflection on a localiser?

A

2.5 degrees (0.5 per dot)

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10
Q

What is full-scale deflection on a glideslope?

A

0.7 degrees (0.14 per dot)

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11
Q

What frequencies do localisers utilise?

A

108-112 MHz on decimal-odd frequencies

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12
Q

what frequencies do glidepath transmitters use?

A

329 - 335 MHz (roughly triple the localiser frequencies)

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13
Q

What is the frequency range for VOR?

A

108-118 MHz (108-112 MHz for TVOR)

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14
Q

What does full scale deflection on an RNAV system in the enroute mode indicate?

A

5 nm off track

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15
Q

What does full scale deflection on an RNAV system in the approach mode indicate?

A

1.25 nm off track

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16
Q

What does full scale deflection on an RNAV system in VOR/DME mode indicate?

A

20 degrees off track

17
Q

At what latitudes are the IRS decoupled from the FMC?

A

84 degrees

18
Q

What is the accuracy of a DME?

A

+- 0.25nm +- 1.25%

19
Q

What is the length of an alphanumeric code used in a FMS to designate a reporting point, nav facility, or aerodrome?

A

up to 5 aplhanumerics (i.e. EGLL, KODAK)

EASA facts and figures COPY (14 decks)

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