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PPL - AGK > Communication Systems > Flashcards

Communication Systems Flashcards

1
Q

How to remember radio transmission bands

A

Very - Very Low
Lovely - Low
Maidens - Medium
Have - High
Very - Very High
Unusual - Ultra High
Social - Super High
Equipment - Extra High

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2
Q

What is the frequency range for the following band

Very Low

A

3 - 30 kHz

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3
Q

What is the frequency range for the following band

Low

A

30 - 300 kHz

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4
Q

What is the frequency range for the following band

Medium

A

303 - 3000 kHz

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5
Q

What is the frequency range for the following band

High

A

3 - 30 mHz

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6
Q

What is the frequency range for the following band

Very High

A

30 - 300 mHz

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7
Q

What is the frequency range for the following band

Ultra High

A

300 - 3000 mHz

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8
Q

What is the frequency range for the following band

Super High

A

3 - 30 gHz

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9
Q

What is the frequency range for the following band

Extra High

A

30 - 300 gHz

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10
Q

Very high frequency (VHF)

What are the following parameters;
1. MHz range
2. No. of channels
3. Channel spacing

A
  1. 118.000 MHz to 136.975 MHz
  2. 760 Channels
  3. 25 kHz channel spacing

8.33 kHz spacing used above FL245

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11
Q

What kHz channel spacing is used above FL245

A

8.33 kHz

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12
Q

What is the line of sight equation

A

1.23 x √ (alt of aircraft + alt of ground aerial)

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13
Q

What 3 things can cause issues with radio propagation

A
  1. Line of sight (space wave)
  2. Earths curvature
  3. High ground
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14
Q

What is the required range for ATSU Tower Frequencies

A

25nm
up to 4000 ft

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15
Q

What is the required range for ATSU Approach Frequencies

A

25nm
up to 10,000 ft

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16
Q

What is the required range for ATSU other airfields

A

Immediate area
up to 3000 ft

17
Q

VHF radio propagation can be affected by ____, which is usually weather dependent

A

TROPOSPHERIC DUCTING

18
Q

Where is the DOC for all radio stations found

A

AERONAUTICAL INFORMATION PUBLICATION
(AIP)

19
Q

What are 4 functions that all radios must have

A
  1. On/Off
  2. Volume
  3. Squelch
  4. Frequency Selection
20
Q

The term used when you hear your own voice when transmitting

A

SIDE TONE

21
Q

COM stacks are usually numbered in what order

A

TOP to BOTTOM
COM 1
COM 2
COM 3

22
Q

What frequency is used for aircraft radio communications

non translantic

A

VHF

PPL - AGK (20 decks)

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