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(Airframe)Aircraft Avionics System > Nav Comm Section 1 part1 > Flashcards

Nav Comm Section 1 part1 Flashcards

1
Q

The LF (Low Frequency) range covers what frequencies?

A

30–300 kHz

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2
Q

The MF (Medium Frequency) range covers what frequencies?

A

300khz - 3000khz

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3
Q

The HF (High Frequency) range covers what frequencies?

A

3mhz - 30mhz

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4
Q

The VHF (Very High Frequency) range covers what frequencies?

A

30mhz-300mhz

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5
Q

The UHF (Ultra High Frequency) range covers what frequencies?

A

300mhz-3000mhz

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6
Q

The SHF (Super High Frequency) range covers what frequencies?

A

3ghz-30ghz

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7
Q

What Navigation & Communication devices use the LF range?

A

Loran ADF and NDB

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8
Q

What Navigation & Communication devices use the MF range?

A

ADF/NDB
Am broadcast + some HF comms

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9
Q

What Navigation & Communication devices use the HF range?

A

HF comms

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10
Q

What Navigation & Communication devices use the VHF range?

A

Marker beacons, fm broadcast, uhf, nav , uhf comm, localizer

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11
Q

What Navigation & Communication devices use the UHF range?

A

Glideslope DME transponder

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12
Q

What Navigation & Communication devices use the SHF range?

A

Radar altimeter, Doppler wave, wether radar

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13
Q

What happens to wavelength as frequency is increased?

A

Gets shorter

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14
Q

What is the most efficient length for any type of antenna?

A

1/2 the wavelength of the carrier wave

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15
Q

What is modulation?

A

Changing the form and characteristics of a radio wave to transmit information

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(Airframe)Aircraft Avionics System (12 decks)

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