IFF/SSR & Mode S Basics

Technology Training

Course ID: IFF-ModeS-000-02-TEC

1 Day

Max. 12



  • State the basic techniques of Secondary Surveillance Radars (SSR)
  • Recognise the problem of FRUIT and Garbling
  • Consider the advantages of Mode S
  • Differentiate between Mode S Acquisition and Lockout strategies
  • Characterise the different Uplink and Downlink Formats

Course Information

Target Group

Project Managers, Engineers, Technicians, Operators and Employees working in the field of radar technology and IFF/SSR Data-Link


Basic knowledge in Radar Technology


  • Introduction to Mk X and sliding window principle
  • Introduction Mode S and monopulse principle
  • Advantages of Mode S compared to Mk X
  • Interrogation and reply signals
  • Interrogator code allocation
  • Mode S acquisition and lockout strategies
  • Combined operation of Mode S and Mk X
  • Roll-call scheduling and power management
  • Uplink and downlink formats
  • Introduction to ADS-B / Mode S Squitter



Do you have any questions, requests or suggestions regarding our trainings?
Please feel free to contact our training experts directly: