AGCS Flashcards

1
Q

What is an AGCS

A

Air ground communication service

A service provided from an aerodrome to give information to pilots of aircraft flying in the vicinity of the aerodrome by means of radio signals.

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2
Q

Who is responsible for ensuring the qualifications and competence of the ROCC holders at a unit?

A

The Wireless Telegraphy Act licensee holder of the aerodrome.

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3
Q

Outside what distance should pilots not attempt to contact a ground station?

A

When outside 10nm and/or 3,000ft, or outside the DOC

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4
Q

When must an individual hold a ROCC?

A
When providing;
AFIS 
AGCS
OCS
information to parachutists
Clearance as part of the clearance delivery officer task
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5
Q

Is an AGCS an ATS?

A

No as it does not include an alerting service.

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6
Q

What is the correct call sign for an AGCS unit?

A

“xxx Radio”

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7
Q

What are the categories of messages?

A
  1. Distress calls, distress messages and distress traffic.
  2. Urgency messages, including messages preceded by the medical transports signal.
  3. Communications relating to direction finding.
  4. Flight safety messages.
  5. Met messages.
  6. Flight regularity messages.
  7. Messages relating to direction finding.
  8. Government messages for which priority has been expressly requested.
  9. Service communications relating to the working of the telecommunications service or to communications previously exchanged.
  10. Other aeronautical communications.
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8
Q

How do units utilising the same frequencies avoid interfering with one another?

A

By making sure there is sufficient geographical separation between the two units.

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9
Q

Transmitting techniques

A

Before transmitting check that the receiver volume is set at the optimum level.
Be familiar with microphone operating techniques and do not turn your head away from it whilst talking or vary the distance between it and your mouth.
Use a normal conversation tone, speak clearly and distinctly.
Maintain an even rate of speech not exceeding 100 words per minute.
Maintain the speaking volume at a constant level.
A slight pause before and after numbers will assist in making them easier to understand.
Avoid using hesitation sounds.
Depress the transmit switch fully before speaking and release it after to avoid clipping transmissions.
Be aware that the mother tongue of the person receiving the message may not be english.
Messages should not contain more than three specific phrases, comprising a clearance, instruction or pertinent information.

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10
Q

Correct way to transmit numbers

A

All numbers contains whole hundreds or thousands shall be passed by pronouncing each digit in front of the hundred of thousand followed by hundred or thousand;
E.g. 1000= wun tousand
14000= wun fower tousand
25500= too fife tousand fife hundred

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11
Q

Call signs for aeronautical stations

A
Area control          CONTROL
Radar                     RADAR
Approach control.APPROACH
Approach control radar/ departure DIRECTION / DEPARTURE (RADAR if performs both)
Ground movement. GROUND
MATZ.   ZONE
Precision approach radar.   TALKDOWN
Flight info.    INFORMATION
AGCS.    RADIO
Clearance delivery.  DELIVERY
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12
Q

Can AGCS provide clearances?

A

No.

ATC clearances only on behalf of an ATC unit.

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13
Q

Mandatory read backs

A
Speed instructions 
Taxi/towing instructions 
Altimeter settings
Runway in use
SSR code setting instructions 
Type of ATS
Heading instructions
Airways or route clearances 
Transition levels
Clearance to enter, take off from, land on, backtrack on, hold short of and cross an active runway
Approach clearances
Level instructions 
Frequencies
VDF information
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14
Q

Can an AGCS issue instructions to aircraft?

A

No, they may only provide advice and information useful to the safe and efficient conduct of flight (NOT A BASIC SERVICE AS DOES NOT INCLUDE AN ALERTING SERVICE).

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15
Q

How many phrases should a message contain at most?

A

Three phrases comprising a clearance, instruction, or pertinent information.

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16
Q

What is the correct phraseology in response to an aircraft in distress?

A

GXXXX, roger mayday/pan (give wind if a/c intends to land on runway).

Then!

All stations, Blackbushe Radio, stop transmitting, mayday/pan

To reestablish comms.

All stations, Balckbushe Radio, distress traffic ended

17
Q

What is the correct phraseology for the imposition of silence?

A

All stations, Blackbushe Radio, stop transmitting, mayday/pan.

18
Q

Pilot emergency message

A
  1. Mayday or pan pan
  2. Name of the station addressed.
  3. Call sign
  4. Type of a/c
  5. Nature of emergency
  6. Intention of PIC
  7. Present or last known position, flight level/altitude and heading
  8. Pilot qualifications
  9. Any other useful information
19
Q

What is the radio horizon of a vhf aeronautical station?

A

For receiving aircraft station is 3000ft at 67nm

Double for 6000ft for example

20
Q

What is the distance of the radio horizon formula?

A

Distance in nm= 1.23xsquare root of height in feet

21
Q

What is the readability scale?

A
  1. Unreadable
  2. Readable now and then
  3. Readable with difficulty
  4. Readable
  5. Perfectly readable
22
Q

Define distress

A

A condition of of being threatened by serious and/or imminent danger and of requiring immediate assistance.

23
Q

Define urgency

A

A condition concerning the safety of an aircraft or vehicle, or of some person on board within sight, but which does not require immediate assistance.

24
Q

Abbreviate speed bird GIANB

A

Speedbird NB

25
Q

What does wilco mean?

A

I have understood your last message and will comply.

26
Q

What does roger mean?

A

UI have received your last transmission

27
Q

When may the call sign of a station be omitted?

A

When two way communication has been established and it will not be confusing.