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Avionics Systems Intro Theory (ELCM 355) > Modules 1-2 > Flashcards

Modules 1-2 Flashcards

1
Q

Who issues radio licenses in Canada?

A

Industry Canada (Not Transport Canada)

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2
Q

Spoken expression for an Urgency situation

A

PAN PAN x 3

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3
Q

Spoken expression for emergency situations

A

MAYDAY MAYDAY MAYDAY

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4
Q

Phonetic Alphabet: (List all 26 letters)

A 
Alpha
Bravo
Charlie
Delta
Echo
Foxtrot
Golf
Hotel
India
Juliette
Kilo
Lima
Mike
November
Oscar
Papa
Quebec
Romeo
Sierra
Tango
Uniform
Victor
Whiskey
X-Ray
Yankee
Zulu
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5
Q

When receiving or replying to a signal check, a 1 x 2 response would mean

A

bad strength, poor readability

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6
Q

The ideal impedance for a good quality aircraft headset is:

A

600 Ohms

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7
Q

Describe the purpose of audio sidetone

A

Allows a small sample of feedback from the microphone to play in the headphones allowing the pilot to hear themselves

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8
Q

What is the puprose of the V/R switches underneath the filter section of an ACP?

A 
V = Voice - Spoken word to be played
R = Range - The audio tones such as morse code to be played
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9
Q

Which one is bigger out of a mic plug and a phones plug? How many conductors does each have?

A

Phones plug is always bigger and has only 2 conductors

A mic plug has 2 or more conductors

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10
Q

What are the different conductor parts on a Mic plug?

A

Tip = PTT
Conductor Ring = Mic audio Hi
Barrel / shaft = Mic audio Lo (ground)

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11
Q

Order of priority for communications is

A
  1. Distress communications
  2. Urgency communications
  3. Radio direction-finding communications
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12
Q

In terms of privacy of communications, penalties can include:

A

Fines not $25,000 or imprisonment for 1 year or both for individuals and companies not exceeding $75,000

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13
Q

What are the penalties for using superfluous communications OR False distress signals?

A

Fines for individuals not exceeding $5000 or imprisonment for 1 year or both
Fines not exceeding $25,000

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14
Q

What is 3:00pm expressed in zulu time?

A

1500 Zulu

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15
Q

Which spoken expressions should NOT be used?

A 
OK
Repeat
Ten-Four
Over and out
Breaker Breaker
Come in please
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16
Q

When a ground station receives multiple calls or signals simultaneously, the ground station can prioritize ________ and this is decided by ______________

A

The order in which to respond

The priority status

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17
Q

When calling a ground station, how are you supposed to initiate the contact?

A
  1. Callsign of station called
  2. THIS IS
  3. The callsign of the calling station
  4. The frequency the calling station is transmitting on
18
Q

Strength and readability is rated from 1 to 5. What are they?

A
  1. Bad
  2. Poor
  3. Fair
  4. Good
  5. Excellent
19
Q

I read you 3 by 5 means

A

Fair strength, Excellent readability

20
Q

I read you 4 by 2 means

A

Good strength, poor readability

21
Q

Definition of distress situation

A

A condition of being threatened by grave or imminent danger and requires immediate assistance

22
Q

Definition of urgency situation

A

A condition concerning the safety of an aircraft or persons onboard, but does not require immediate assistance

23
Q

Emergency frequency is

A

121.500 MHz

24
Q

“Affirmative” means

A

Yes

25
Q

“Confirm” means

A

Did you receive my last message?

26
Q

“Over” is used when

A

you are done your message and are awaiting a reply

27
Q

“Roger” means

A

You have received all of last transmission

28
Q

“Wilco” means

A

You will comply with instructions received

29
Q

True or false: All radio stations in Canada must have a radio license

A

True, with few exemptions

30
Q

Penalties for not having a radio license as a radio station include:

A

Fines for individuals not exceeding $5000 or jail time up to 1 year or both
Not exceeding $25,000 for companies / corporations

31
Q

A transceiver allows a pilot to

A

Transmit and receive signals

32
Q

ACP stands for

A

Audio Control Panel

33
Q

A PTT switch essentially changes the transceiver from a ___________ to a ____________

A

Receiver

Transmitter

34
Q

All audio panels control our microphone___________ and our audio __________

A

OUTPUTS

INPUTS

35
Q

Impedance means

A

The amount of resistance there is within a given power output

36
Q

ADF stands for

A

Automatic Direction Finder

37
Q

DME stands for

A

Distance Measuring Equipment

38
Q

SPKR is for

A

The cockpit speaker or the PA system on a large aircraft

39
Q

BOTH switch allows

A

Activates Mic 1 or 2 OUTPUT and LISTENING to both COMM 1 and COMM 2 INPUTS

40
Q

Speakers are designed to operate between ______and_______ ohms

A

4

16

41
Q

List the 3 different types of microphones

A

Dynamic
Electret
Carbon

42
Q

What is Squelch?

A

Prevents audio feedback from your own input by silencing the output

Avionics Systems Intro Theory (ELCM 355) (4 decks)

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