Military Avionics
Tel-Instrument Expands SDR-OMNI with New GPS Simulator Application
Tel-Instrument Electronics Corp. is pleased to announce the availability of the new SDR-OMNI GPS Simulator Application, a powerful expansion to the SDR-OMNI platform that brings practical GPS receiver, ADS-B, and coupled autopilot testing directly into the hangar and onto the flight line.Designed for aircraft maintenance, avionics troubleshooting, and installation support, the SDR-OMNI GPS Simulator Application transforms SDR-OMNI into a portable GPS test solution capable of simulating up to 12 GPS L1 satellite channels in a controlled aircraft-on-ground environment. Using a dedicated GPS antenna coupler and multi-satellite L1 simulation, technicians can verify GPS receiver operation, support ADS-B position source validation, test coupled autopilot functions, and troubleshoot antenna or coax issues without relying on live sky conditions.
New T-47/M5 Software Update is Available
Tel-Instrument has released a new Software version for users of our popular T-47/M5 IFF Test Set (07.300.30). This update adds a new feature - Mode 5 L2B IN and OUT, removal of all Mode 4 components and also corrects a minor bug affecting with GPS Roll Over. The Software can easily be installed by Tel-Instrument or any of our authorized Service Centers.Note: As the software adds additional capability, international users of the T-47/M5 will need a Department of State License to receive the update.
There is a charge for the software and you can download a copy of the Technical Bulletin here:
Software Update Available for the TS-4530A IFF Test Set
A New Optional Software Update is available for all owners of the Tel-Instrument TS-4530A IFF Test Set (P/N 90 000 125) offering extensive updates and improvements.The Software update includes changes that adds full compliance with 2025 AIMSPO requirements and removal of all Mode 4 components and TACAN Testing and Mode 5 L2B IN/OUT testing capability.
SDR-OMNI/MIL receives a NSN (National Stock Number)
Tel-Instrument is pleased to announce that the SDR-OMNI/MIL Test Set has now received a National Stock Number (NSN). This development will allow the US Military and NATO patners easy ability to order the Test Set.
SDR-OMNI/MIL Part Number is 90-000-165
NSN 6625-01-718-8522
SDR-OMNI/MIL Test Set
SDR-OMNI/MIL Avionics Test Set
The SDR-OMNI/MIL combines the proven capabilities of the commercial SDR-OMNI with expanded military avionics testing in a rugged MIL-SPEC portable platform.
Supporting communications, navigation, TACAN, transponder, ADS-B, DME, ELT, GPS, and ATC Modes 1 & 2, the SDR-OMNI/MIL is designed for military flight line, depot maintenance, government agencies, and defense contractors. It serves as a modern replacement for legacy Tel-Instrument T-47 Series, IFR-4000, and IFR-6015 avionics test sets.
NATO NSN: 6625-01-718-8522
Software, firmware updates, technical manuals, and certain documentation for the SDR-OMNI/MIL are subject to U.S. export control regulations. These materials are not available for public download. Please contact Tel-Instrument Product Support or your authorized representative to obtain the latest software revisions and technical documentation. Current approved software revision: Version 1.5.10
T-4530i IFF Test Set
T-4530i Avionics Test Set
The T-4530i is the next evolution of the highly successful TS-4530A avionics test set. Designed for military flight line, depot, and system integration applications, the T-4530i provides comprehensive testing, simulation, and analysis of modern identification, navigation, surveillance, and collision avoidance systems.
With the optional crypto interface, the T-4530i supports the KIV-77 and SIT-2010 and provides testing for Modes 1, 2, 3/A, C, S, EHS, ADS-B transmit and receive, National Security Mode capability, Mode 5 Levels 1 and 2, TCAS I and II, and TACAN systems.
The T-4530i combines a full-color display, joystick-based navigation, and a lightweight portable design with extended NiMH battery operation for demanding field applications.
Key Capabilities
- Interrogator and transponder testing for Modes 1, 2, 3/A, C, S, EHS, optional Mode 4, and Mode 5 Levels 1 and 2.
- Specific test functions supporting transponder integration testing in accordance with applicable DoD AIMS requirements.
- Support for the optional KIV-77 or SIT-2010 crypto applique.
- Comprehensive TACAN testing in air-to-air, ground-to-air, and air-to-air beacon modes.
- Testing across all 256 TACAN X and Y channels.
- TCAS I, TCAS II, and E-TCAS intruder simulation capabilities.
- ADS-B testing supporting applicable RTCA DO-260A and DO-260B requirements.
- Remote Client operation through a USB connection to a compatible laptop or desktop computer.
- RoHS-compliant design for supported international applications.
Battery Operation
The T-4530i uses long-life NiMH battery technology. Two batteries are included and provide up to approximately eight hours of combined operating time, depending on equipment configuration, test conditions, and battery condition.
The T-4530i and related software, firmware, technical manuals, crypto interface information, and certain documentation are subject to United States export control laws and regulations, including ITAR and EAR requirements where applicable.
Controlled software, technical data, and documentation are not available for unrestricted public download. Please contact Tel-Instrument Sales, Product Support, or an authorized representative for assistance.
T-47/M5-L2B DUAL CRYPTO Test Set
T-47/M5 Mode 5 IFF Test Set
The T-47/M5 is Tel-Instrument's advanced AIMSPO-certified military IFF test set designed for flight line, ramp, and bench testing of modern military transponder and interrogator systems.
Built for global military and defense applications, the T-47/M5 supports comprehensive testing of Modes 1, 2, 3/A, C, S, EHS, ADS-B, NSM, Mode 5 Level 1 & 2, Mode 5L2B, TCAS I/II, and full TACAN receiver-transmitter testing.
The T-47/M5 works with all major CCI configurations including KIV-77, KIV-78, KIV-79, and SIT2010, providing flexible support for NATO and international Mode 5 test requirements.
With direct-connect and over-the-air test capability, integrated remote client operation, a large color display, long battery life, and rugged MIL-SPEC packaging, the T-47/M5 is a preferred Mode 5 IFF test solution for NATO and allied military customers worldwide.
AIMSPO Certified | Mode 5L2B IN/OUT Testing | TACAN A/A, G/A, and A/A BCN | ADS-B TX/RX | TCAS I/II | Remote Client Testing
The T-47/M5 is subject to U.S. export control regulations. Software, firmware updates, technical manuals, crypto-related information, and certain documentation may not be available for public download. Please contact Tel-Instrument Sales, Product Support, or your authorized representative for access to controlled information, software updates, or technical documentation.
TS-4530A IFF Test Set w/ M5L2B
TS-4530A Mode 5L2B Ramp Test Set
The TS-4530A with Mode 5L2B is a rugged military ramp test set designed for fast, reliable GO/NO-GO testing of modern IFF, TACAN, ADS-B, and TCAS systems.
Developed under a U.S. Army contract, the TS-4530A provides straightforward flight line verification for Modes 1, 2, 3/A, C, Mode S, EHS, Mode 5 Levels 1 & 2, Mode 5L2B, TACAN, ADS-B IN/OUT, and TCAS I/II with E-TCAS intruder simulation.
The TS-4530A is designed for technicians who need quick, repeatable operational checks without complex bench-test procedures.
The TS-4530A includes a large color display, easy-to-use 3-button control interface with 4-way directional toggle, integrated GPS, and a built-in Option A enclosure supporting KIV-77 and SIT2010 CCI operation.
NSN: 6625-01-562-0715
The TS-4530A is subject to U.S. export control regulations. Software, firmware updates, technical manuals, crypto-related information, and certain documentation may not be available for public download. Please contact Tel-Instrument Sales, Product Support, or your authorized representative for access to controlled information, software updates, or technical documentation.
AN/USM-708A Ramp Test Set
AN/USM-708A Multi-Function Test Set
The AN/USM-708A Multi-Function Test Set is the upgraded replacement for the AN/USM-708, retaining the extensive test capabilities of the original platform while adding updated hardware, modernized software, and expanded operational flexibility.
Designed for military ground support and avionics maintenance environments, the AN/USM-708A provides comprehensive test capability for transponder, interrogator, ADS-B, navigation, TACAN, sonobuoy, Link-4, ADF, and related airborne avionics systems.
The AN/USM-708A, P/N 90000215, replaces the AN/USM-708, P/N 90000108, with updated hardware and software while eliminating legacy Mode 4 components and removing previous Over-the-Air testing restrictions.
The AN/USM-708A features a large NVG-compatible color LCD, surrounding soft keys, and a rugged operator interface designed for single-person operation, fast test access, pre-programmed test configurations, and manually variable parameters for demanding military avionics applications.
NSN: 4920-01-709-0335
The AN/USM-708A is subject to U.S. export control regulations. Software, firmware updates, technical manuals, crypto-related information, and certain documentation may not be available for public download. Please contact Tel-Instrument Sales, Product Support, or your authorized representative for access to controlled information, software updates, or technical documentation.
AN/USM-719A Ramp Test Set
AN/USM-719A Multi-Function Test Set
The AN/USM-719A is the next-generation replacement for the AN/USM-719, providing updated hardware, enhanced software, and expanded operational capability while eliminating legacy Mode 4 components and previous Over-the-Air testing restrictions.
Designed specifically for military transponder, interrogator, and shipboard IFF applications, the AN/USM-719A delivers comprehensive Mode 5, ADS-B, TACAN, and surveillance testing in a rugged, portable military platform.
Optimized for military IFF applications, the AN/USM-719A focuses on interrogation, surveillance, and TACAN testing while maintaining compatibility with current military cryptographic equipment and modern avionics systems.
The AN/USM-719A features a large NVG-compatible color display, intuitive soft-key operation, built-in KIV-78 powered bay, and support for both Direct Connect and Over-the-Air testing using the TAP-OMNI Antenna Coupler.
The AN/USM-719A can be factory upgraded to the full AN/USM-708A configuration, providing an easy migration path as operational requirements expand.
NSN: 6625-01-723-0673
The AN/USM-719A is subject to U.S. export control regulations. Software, firmware updates, technical manuals, crypto-related information, and certain documentation may not be available for public download. Please contact Tel-Instrument Sales, Product Support, or your authorized representative for access to controlled information, software updates, or technical documentation.
T-47NH XPDR INTERR IFF TACAN DME TCAS RAMP TEST SET
T-47NH Multifunction Ramp Test Set
The T-47NH is a battery-powered, portable multifunction ramp test set designed to test aircraft and vehicle-installed transponders, interrogators, Mode S systems, TCAS interrogators, and TACAN/DME equipment.
Testing can be performed over the air using the supplied directional antenna or by directly connecting the test set to the unit-under-test antenna port.
The T-47NH was discontinued effective May 15, 2025. The recommended replacement is the SDR-OMNI/MIL All-In-One Avionics Test Set, which provides expanded capabilities in a modern software-defined platform.
Key Capabilities
- Testing of transponders and interrogators using either radiated or direct-connect methods.
- Support for Mode S Elementary Surveillance and Enhanced Surveillance testing.
- Reception and display of Mode S DF-17 Extended Squitter ADS-B information.
- Testing of TCAS interrogators and supported collision-avoidance systems.
- TACAN and DME testing for supported aircraft and vehicle installations.
- Directional antenna with active LED indication and optical sight for radiated testing.
- Built-in battery charger and front-panel removable battery.
- Portable configuration with accessories stored inside the removable cover.
- Optional KIR/KIT cable support with compatible KIT/KIR computer modules or KIV-6 module installation.
National Stock Number
NSN: 6625-01-482-4577
Legacy Product Support
Technical support, repair services, replacement parts, and documentation for the T-47NH may be limited by component obsolescence, parts availability, product configuration, and the availability of legacy technical data.
Customers requiring assistance with an existing T-47NH should contact Tel-Instrument Product Support. Customers evaluating replacement equipment should contact Tel-Instrument Sales or an authorized representative.
The T-47NH and related software, firmware, technical manuals, crypto-related information, and certain technical data are subject to United States export control laws and regulations, including ITAR and EAR requirements where applicable.
Controlled software, technical data, and documentation are not available for unrestricted public download. Please contact Tel-Instrument Sales, Product Support, or an authorized representative for assistance.
