IFF Systems

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Secure Identification and Mode Capabilities

Identification Friend or Foe (IFF) systems are critical for ensuring secure and reliable identification of cooperative military assets in contested environments. Modern IFF transponders and interrogators operate across multiple modes—such as Modes 1, 2, 3/A, C for legacy or civilian-compatible functions, and Modes 4 and 5 for encrypted, secure military operations. Mode 5, in particular, is the NATO-standard for secure IFF, offering encrypted identification and enhanced data capacity for coalition interoperability. These systems allow rapid, automated recognition of friendly forces, reducing the risk of fratricide and enhancing situational awareness across complex battle spaces.

 

ATI photo IFF Systems 2

Platform Integration and Cryptographic Control

IFF systems are primarily deployed on airborne and maritime platforms, where they are integral to command and control, air policing, and threat discrimination missions. While ground use is more limited, it does occur in specific battlefield air-defense networks or mobile interrogation platforms. To maintain operational security, encrypted modes like 4 and 5 rely on cryptographic key management systems, which govern the loading, distribution, and expiration of IFF codes. Proper key handling is essential for authentication integrity and secure mission execution, making crypto control as vital as the hardware itself in modern IFF operations.

ATI photo IFF Systems 1

Highlighted IFF Systems

Thales TSB 3520 IFF Interrogator prod

Thales TSA 3520

The Thales TSA 3520 is a medium- to long-range Identification Friend or Foe (IFF) interrogator designed for ground-based and naval surveillance applications. Fully compliant with the latest NATO and civilian identification standards, it supports secure and reliable identification across various operational environments. Its modular design and advanced features make it suitable for integration into complex defense systems, ensuring interoperability and mission readiness.

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Leonardo SIT434 IFF System prod

Leonardo SIT434CI

The SIT434CI is a next-generation Identification Friend or Foe (IFF) interrogator developed by Leonardo as part of the multinational NGIFF (New-Generation IFF) program. Designed for airborne, naval, and ground surveillance platforms, it delivers advanced interrogation capabilities across NATO Mode 4-like NSM, Mk XA, and Mode S standards. Its rugged, modular design and versatile interfaces make it suitable for both modern and legacy systems, offering unmatched flexibility in secure identification and situational awareness.

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ATI LTR 400

Hensoldt LTR 400

The HENSOLDT LTR 400 is a lightweight, state-of-the-art Identification Friend or Foe (IFF) transponder designed to meet the latest NATO Mode 5 standards. Fully certified for both military and civil applications, it ensures secure and reliable identification across air, land, and sea domains. Its compact design and advanced features make it suitable for integration into a wide range of platforms, enhancing situational awareness and reducing the risk of friendly fire incidents.

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Mateusz Blicharz | Director, Business Development

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