Aircraft Transponder System Trainer


Our trainer enables trainees to get hands-on experience on transponder systems. The trainer ensures practical training with original aircraft transponder equipment configured to bring real-life experience to the training environment.

Our design provides trainees with a good understanding of transponder equipment and a methodical approach for troubleshooting and testing procedures. We understand and tailor according to our customers’ training needs.

The trainer is delivered plug and play and comes with necessary antennas, transmitters, receivers, wiring, and indicators.


  1. Understanding fundamentals of aircraft transponder and its components.
  2. Encoder altimeter
  3. Encoder altimeter testing
  4. TXPDR Ident
  5. Aircraft Altimeter
  6. Altimeter and Transponder run in sync
  7. Altitude simulation
  8. Installed and mounted in the rack.
  9. A-mode, C-mode and S-mode operation.
  10. Toggle switch for modes A or C
  11. 0-15 DC current meter and 0-30 V DC voltmeter
  12. The system mounted on a metal/aluminum mobile stand.
  13. Metal/aluminum frame with 4 wheels. 2 of 4 wheels are lockable.
  14. Delivered fully assembled tested and ready to operate
  15. Colored Ultraviolet printing method on aluminum composite panel.


  1. Transponder
  2. Transponder antenna with coaxial connector
  3. Altitude Encoder
  4. Altimeter
  5. Vacuum Pump
  6. Dc Power Box
  7. Aircraft Circuit Breaker
  8. Circuit Breaker Lockout
  9. 20A power supply
  10. Current and voltage meters
  11. Assembled and wired according to aeronautical regulations
  12. Aeronautical standard connectors and jackets

Components Technical Specs

  1. Transponder Device General Specs
  • Transmitter Frequency; 1090 MHz +-3 MHz
  • Receiver Sensitivity: -73dBm (nominal); -69dBm (min. for 90% reply)
  • Mode C Capability: Accepts standard ICAO Altitude Transmission Code digitizer output, reporting in 100 ft. increments from -1000 ft. throughout operating range
  • Input voltage 28 VDC
  • 4096 discrete codes
  • Backlight labels and knobs
  • CLR button
  • VFR button
  • IDT button
  • Numeric Buttons (0-1-2-3-4-5-6-7)
  • Code window
  • Original installation manual.


  • User’s Manual
  • Instructor’s Guide
  • Device’s original Manual
  • Device’s original Wiring Diagrams
  • Training video for teacher

Power Specs

  • Electrical box
  • Residual current device
  • Emergency Button
  • Energy Signal Lamp
  • 110 VAC 60 Hz or 220-240 VAC 50 Hz

Required Items

  • To effectively test the avionics on XPND-100A
    • Option-1 AV-500A NAV/COM tester check for specification refer AV-500A
    • Option-2 AV-500B NAV/COM tester check for specification refer AV-500B
    • Recommended NAV/COM Ramp Tester is AV-500A, if end user does not have any kind of NAV/COM tester


  • Instructor’s Panel Control Box for Scenario and Fault Simulation

Optional Items

  • Mode S

For Mode S operation please contact us