The document discusses identification friend or foe (IFF) systems, which enable radar systems to identify aircraft as friendly. IFF was developed during World War II and uses transponders and interrogation signals so that radar can receive a response identifying an aircraft as friendly. The document outlines the history of IFF and how the technology works, explaining the system parts, modes including Mode 4, applications beyond aviation, and concluding with IFF information and a request for questions.

1. IDENTIFICATION FRIEND OR
FOE
T.Sgt Serdar YILMAZTÜRK
Avionic Teacher

2. CONTENTS
•WHAT IS IFF ?
•HISTORY AND DEVELOPMENT OF IFF
•IFF SYSTEM PARTS
•IFF MODES
•HOW IFF SYSTEM WORKS?
•OTHER IFF APPLICATION
•CONCLUSION

3. WHAT IS IFF ?
Identification, friend or foe (IFF) is an
identification system designed for command and control.
It enables military and civilian air traffic control
interrogation systems to identify aircraft as friendly.

4. HISTORY AND DEVELOPMENT OF IFF
• The technology IFF
was developed during
WORLD WAR-II by
British and American
military
• Sir ROBERT WATSON
WATT invented the first
IFF transponder in 1935
• This technology was later
used by Civil Aviation in
1950s.
4

5. IFF SYSTEM PARTS

7. MODE-4

8. HOW AN IFF SYSTEM WORKS?

9. RADAR DISPLAY

10. OTHER IFF
APPLICATION

11. 11
CONCLUSION
o IFF INFORMATIONS
o IFF HISTORY
o IFF MODES
o MODE-4
o OTHER IFF APPLICATION

12. ANY QUESTIONS
?????
12