The Marconi IFR Aeroflex IFF-701Ti Mode S Transponder/Interrogator Test Set is a portable, battery-operated unit for organizational and intermediate-level testing of IFF MK12/Mode S transponders and MK12 interrogators across airborne, naval, and land-based platforms. It performs verification testing across Modes 1, 2, 3/A, 4, C, and S, with additional capabilities for TCAS and E-TCAS systems. The test set operates in both auto-test and single-test modes, enabling rapid pass/fail assessment or detailed diagnostics with parametric measurements of transmitter peak power, frequency, receiver sensitivity, and effective radiated power.
Technical Specifications
• Supported transponder systems: IFF MK12, Mode S (Level 3 compliant with FAR Part 43 Appendix F)
• Supported interrogator systems: IFF MK12
• TCAS capability: TCAS 1, TCAS 2, E-TCAS
• Transponder test modes: Mode 1, Mode 2, Mode 3/A, Mode 4, Mode C, Mode S
• Interrogator test modes: Mode 1, Mode 2, Mode 3/A, Mode 4, Mode C
• Measurement functions: Transmitter peak power, transmitter frequency, receiver sensitivity, effective radiated power (ERP)
• Crypto interface: KIT/KIR-1C for Mode 4 operation; optional KIV-6 interface
• Power supply: +28 VDC for crypto module operation
• Standard compliance: STANAG 4193/AIMS 97-1000 parametric test limits
– Key Features
• Auto Test function with pre-programmed mode and parameter validation sequences
• Single Test mode for individual diagnostic checks during maintenance
• Interrogator Auto Test with dynamic target simulation (range and altitude)
• Built-in Self-Test (BIST) for internal function verification
• User-selectable factory configuration files with mode combinations and test limits
• GO/NO-GO or diagnostic operation modes
• Mode 4 code storage capability
• Parametric measurement accuracy for transmitter and receiver performance
– Typical Applications
• First-line organizational-level transponder and interrogator verification
• Second-line intermediate-level filter bench testing
• Airborne IFF system certification and maintenance
• Naval platform system validation
• Land-based installation and field testing
– Compatibility & Integration
The IFF-701Ti integrates with cryptographic modules via KIT/KIR-1C interfaces and supports stored code operations. Direct power supply to crypto modules from the test set’s +28 VDC rail eliminates external supply dependencies.
