Military pilots and C4ISR leaders know that proven, up-to-date IFF aircraft identification systems provide time-critical insights that reduce friendly fire incidents, support mission success, and save lives. That’s true in the air, on ships, and on the ground – especially in hostile environments. BAE Systems has been a leader in IFF systems technology worldwide for more than seven decades, having delivered over 14,000 transponders, 1,500 interrogators, and 6,000 combined interrogator transponder systems for use across a multitude of platforms.
Available for all service branches, our IFF systems can enhance the safety and operational tracking of legacy, new, and emerging platforms including unmanned aerial vehicles, ships, fixed-wing aircraft, and helicopters. They can also replace outdated systems with small form factor units that support SWAP-C objectives and accommodate future upgrades.
Learn about our Identification Friend or Foe (IFF) products
Identification Friend or Foe (IFF) Transponders
Our IFF military Mark XIIA transponders allow aircraft and ships to be identified as friendly forces by responding to interrogations from ground-based or airborne IFF systems. The transponders installed on aircraft and naval vessels establish the identity of friendly forces. For SWAP-constrained platforms and to reduce procurement, upgrade, and life cycle costs, see more about our next generation AN/DPX-7 Reduced Size Transponder (RST) below. All of our transponders feature:
- Flexible interface designed to accommodate retrofit and new installations
- Modes 1, 2, 3/A, C, 4, S, and ADS-B
- Mode 5
- DoD AIMS certified
Download the Transponder product datasheets
- AN/APX-117(V) and AN/APX-118(V) Common Transponders (CXP)
- AN/APX-123(V) Common Transponder with Mode 5, Mode S and ADS-B
- AN/DPX-7 Reduced size transponder with GPS applique
- AN/DPX-7 Reduced Size Transponder
- C-12907/APX Updated remote control unit
Identification Friend or Foe (IFF) Interrogators
BAE Systems’ IFF interrogators offer modular architectures for customized configurations and optimized performance for surveillance, air traffic control, and range instrumentation. The AN/APX-41 (C) is the standard U.S. Navy interrogator, with more than 1,000 units delivered. Features include:
- Operates autonomously, or in conjunction with, a host radar
- Modes 1, 2, 3/A, C, 4, and S
- Mode 5
- DoD AIMS certified
Download the IFF Interrogator datasheets
- Digital Interrogator product family
- AN/UPX-37 Digital Interrogator
- AN/APX-122 Airborne Interrogator IFF System
- AN/APX-122A MKXIIA and Mode S Interrogator
- AN/UPX-41(C)/45(C) Digital Interrogator
- AN/UPX-42(C) Digital Interrogator
- AN/UPX-50(C) Digital Interrogator
- Man-Portable Digital Interrogator
- AN/TPX-54(V) (No longer in production)
IFF Combined Interrogator Transponders (CITs)
Our Combined Interrogator Transponders are versatile IFF systems for highly mobile platforms, providing today’s and tomorrow’s warfighters with the ability to identify friendly aircraft in a secure environment. Our CITs all feature:
Products: AN/APX-113 (V), AN/APX-125, and AN/APX-126
- Modes 1, 2, 3/A, C, 4, S (XP only), and ADS-B
- Mode 5
- DoD AIMS certified
- Multiple antenna configurations
Download the Combined Interrogator Transponder datasheets
- AN/APX-111(V) Interrogator/Transponder
- AN/APX-113(V) and AN/APX-125(V) Combined Interrogator/Transponder F-16 Configuration
- AN/APX-113(V), AN/APX-125(V), and AN/APX-126 Combined Interrogator/Transponders
- AN/APX-126 Combined Interrogator/Transponder F-16 Configuration
- F-15 Combined Interrogator/Transponder
Cryptographic Computer and Emulator products
The universal cryptographic computer is used in conjunction with interrogator and/or transponder subsystems to encrypt interrogator challenges, generate transponder encoded replies, and process the coded replies back to the interrogator.
Products: KIV-6 Mark XII IFF Crypto, KIV-77 and KIV-78 Emulators
- Highly reliable, compact design
- Loaded with an operational key code each day
- DoD AIMS certified
Download the Cryptographic Computer and Emulator products datasheets
Identification Friend or Foe (IFF) Ship Antennas
The BAE Systems antenna group supports a wide range of C4ISR systems, including IFF, secondary surveillance radar, and air traffic control radar. This field-proven system is highly reliable, offering constant fleet protection for navies around the world. It features:
Products: OE-120/UPX Antenna Group
- Instantaneous, multiple target identification
- Accommodates all standard IFF modes
- Electronically-steered system architecture
Download the ship antennas datasheet
IFF product literature
Overview
Transponder products
- AN/APX-117(V) and AN/APX-118(V) Common Transponders (CXP)
- AN/APX-123(V) Common Transponder with Mode 5, Mode S and ADS-B
- AN/APX-124(C) Digital Transponder
- AN/DPX-7 Reduced size transponder with GPS applique
- AN/DPX-7 Reduced Size Transponder
- C-12907/APX Updated remote control unit
Interrogator products
- Digital Interrogator product family
- AN/UPX-37 Digital Interrogator
- AN/APX-122 Airborne Interrogator IFF System
- AN/APX-122A MKXIIA and Mode S Interrogator
- AN/UPX-41(C)/45(C) Digital Interrogator
- AN/UPX-42(C) Digital Interrogator
- AN/UPX-50(C) Digital Interrogator
- Man-Portable Digital Interrogator
- AN/TPX-54(V) (No longer in production)
Combined Interrogator / Transponder products
- AN/APX-111(V) Interrogator/Transponder
- AN/APX-113(V) and AN/APX-125(V) Combined Interrogator/Transponder F-16 Configuration
- AN/APX-113(V), AN/APX-125(V), and AN/APX-126 Combined Interrogator/Transponders
- AN/APX-126 Combined Interrogator/Transponder F-16 Configuration
- F-15 Combined Interrogator/Transponder
Cryptographic Computer and Emulator Products
Antennas
Related terms
IFF • IFF Mode 5 • Mode 5 • Mode 5 IFF • Mk XIIA • Mk XIIB • ADS-B • UAT • FVL • Transponder • Interrogator • SAA • IFF Radar • IFF SSR • UAV IFF • Identification Friend or Foe • Transponder • Combined Interrogator Transponder • Interrogator • Mode 5 Level 2 • Mode 5 Level 2 Broadcast • Mode 5 Transponder
Learn more about our Tactical Systems Products below, see our related press releases above, or contact our Identification Friend or Foe business representative today to arrange a meeting.
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BAE Systems to provide Identification Friend-or-Foe Technology for E-2D Hawkeye
Delivering situational awareness for U.S. Navy warfighters -
BAE Systems receives certification for F-22 Identification Friend-or-Foe capability
Our IFF transponder has been certified for the F-22 aircraft -
BAE Systems joins Boeing’s MQ-25 industry team
MQ-25 is the U.S. Navy’s first operational carrier-based unmanned aircraft -
BAE Systems delivers 150th Shipboard Friend-or-Foe antenna to U.S. Navy
Our shipboard antennas are used by sailors to identify friendly aircraft and vessels -
Missile Warning and Friend or Foe Systems to protect U.S. Air Force Combat Rescue Helicopters
First U.S. Air Force platform to benefit from BAE Systems’ proven Reduced Size Transponder and Common Missile Warning System. -
BAE Systems’ Combat Identification Server Providing Enhanced Fratricide Protection in Afghanistan
U.S. Forces are one step closer to reducing the chance of friendly fire incidents with the deployment of the BAE Systems’ Combat Identification Server (CID Server) to Afghanistan.
Tactical Systems
Communications, Navigation & Identification
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Link 16 Products
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Multifunctional Information Distribution System - Joint Tactical Radio System (MIDS JTRS)
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Network Tactical Common Data Link
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Multiband Communications and Crypto Systems (MCC)
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Doppler Radars for Helicopter Navigation
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AN/DPX-7 Reduced Size Transponder (RST)
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AN/ASN-157 Doppler Navigation Set
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Identification Friend or Foe (IFF)
