Automation And AFTN

Question 1

What is AFTN?

Answer 1

Aeronautical Fixed Telecommunications Network

“A worldwide system of aeronautical fixed
circuits provided as part of the aeronautical
fixed service for the exchange of messages
and/or digital data between stations having the
same or compatible communications
equipment”

Question 2

How do we address each AFTN station?

Answer 2

Each has a unique address, 8 letters.
4 letter ICAO identifier and 4 letter position qualifier
EGLLZTZX - Heathrow Tower

Question 3

What is MOTNE?

Answer 3

Meteorological Operation Telecommunication Network Europe

Question 4

What is OLDI?

Answer 4

On-Line Data Interchange

Question 5

What is OLDI Use for?

Answer 5

Transmission of aeronautical data for control and coordination

Question 6

What should be the reliability of OLDI?

Answer 6

99.86%

Question 7

What are the benefits of OLDI? (4)

Answer 7

• Automation of routine actions (information exchange) which allows the controllers to focus on more complex tasks. (e.g., conflict detection and resolution)
• Reduced controller workload due to reduced need for verbal coordination.
• Better situational awareness
• Indirect improvement of ATS system safety features. (e.g., MTCD)

Question 8

What other networks are used in ATC?

Answer 8

Overseas Fixed Telecommunications Service (OFTS)
Société International Telecommunications Association (SITA)