kap 1- communication

Question 1

What kind of informartion can you obtain from Q- codes?

Answer 1

• Pressure settings
• Directions
• Bearings or headings
• Positions

Question 2

What is QFE?

Answer 2

Indicates hight above QFE reference datum

Question 3

What is QNH?

Answer 3

Indicates altitude above mean sea level

Question 4

What is QDM?

Answer 4

The magnetic heading to stear with no wind, to fly to the direction finding station

Question 5

What is QDR?

Answer 5

The magnetic bearing of the aircraft from the direction finding station

Question 6

What is QTE?

Answer 6

The true bearing of the aircraft from the direction finding station

Question 7

What is QUJ?

Answer 7

The true heading to be steared by the aircraft, with no wind, to fly to the direction finding station

Question 8

What do you do if the transmission has been to short for the direction finding station to obtain a bearing?

Answer 8

The aircraft will be asked to provide a longer transmission of to periods lasting approximately 10 seconds.

Question 9

When a heading or bearing has been requested, the direction- finding station advises the aircraft in the following way:

Answer 9

• The appropriate phrase or Q- code signal
• Bearing or heading in degrees in relation to the direction finding station
• Class of bearing
  Time of observation, if neccessary

Question 10

What is class B

Answer 10

Bearing of +/- 5 degrees and a position of +/- 20NM

Question 11

When a position has been rquested, the direction finding control station, after plotting all simultaneous observations, shall determine the observed position of the aircraft and advise the aircraft in the followig form:

Answer 11

• The appropriate phrase or Q- code signal
• The posistion
• Class of position
  Time of observation

Question 12

What is class A

Answer 12

Bearing of +/- 2 degrees and a position of +/- 5NM

Question 12

What are the categories of Messages?

Answer 12

1. Distress calls, distress messages and distress trafic
2. Urgancy messages, including messages preceded by the medical transport signal
3. Communications relating to direction finding
4. Flight safety messages
5. Metereological messages
6. Flight regularity messages

A NOTAM may qualify for any of the categories or priorities.

Question 13

What is class D

Answer 13

Bearing of more than +/- 10 degrees and a position of more than +/- 50NM

Question 14

What is class C

Answer 14

Bearing of +/- 10 degrees and a position of +/- 50NM

Question 15

What shall flight safety messages comprise?

Answer 15

• Movement and controll messages (clearances abd authorizations)
• Messages originated by an aircraft operating agency or by an aircraft, of immediate concern to an aircraft in flight
• Metereological advise of immediate concern to an aircraft in flight or about to depart
• Other messages concerning aircrafts in flight or about to depart

Question 16

What is metereological messages?

Answer 16

Messages that include MET- info to or from aircraft other than those in flight safety messages

Question 17

What does flight regularity messages include?

Answer 17

• Messages regarding the operation or maintenance of facilities essential for the safety or regularity of aircraft operation
• Messages concerning servicing of aircraft
• Instructions to aircraft operating agency representatives concering changes in requirements for passangersand crew caused by an avoidable deviations from normal operating schedules (individual requirements shall not be admissable in this type of message)
• Messages concering non- routine landings to be made by the aircraft
• Messages concerning aircraft parts and materials urgently required.
  Messages concerning changes in aircraft operating schedules

Question 18

Are ATS required to handle flight regularity messages?

Answer 18

ATS units using direct pilot-controller communication channels are only required to handle flight regularity messages provided this can be achieved without interference with their primary role and no other channels are available for the handling of such messages.

Messages of the same priority, should in general be transmitted in the order for which they are received for transmission.

Question 19

What is inter pilot air-to-air communication?

Answer 19

Messages between pilots related to any matter affecting safety and regularity of flight. The category and priority of these messages determined on the basis of their content. Interpilot air-to-air comm is made on the air-to-air channel 123.45 MHz by either a directed call to a specific aircraft station or a general call, depending on the circumstances.

Question 20

What are the common classification of frequency bands?

Answer 20

• VLF (3 kHz - 30 kHz)
• LF (30 kHz - 300 kHz)
• MF (300 kHz - 3000 kHz)
• HF (3000 kHz - 30 MHz)
• VHF (30 MHz - 300 MHz
• UHF (300 MHz - 3000 MHz)
• SHF (3000 MHz - 30000 MHz)
• EHF (30 GHz - 300 GHz)

Question 21

What are the frequency bands of the VHF spectrum (Aeronautical)

Answer 21

• ILS (localizer): 108-112 MHz
• VOR: 108-118 MHz
• VHF comms: 118 MHz-137 MHz

Question 22

The formula of range and quality of VHF Transmission

Answer 22

VHF signals follow a direct wave path. The line of sight. Broadly, higher aircraft are able to send and receive transmission over greater distances.

Range (NM) = sqrt(flight level) * 12 = NM (approximately)

Question 23

What is the definition of altitude?

Answer 23

Altitude is the vertical distance of a level, a point or an object considered as a point, measured from mean sea level