IFR4000 Nav/Comm Flight Line Test Set

The IFR 4000 is a compact, lightweight and weatherproof unit designed for testing ILS, VOR, Marker Beacon and VHF/UHF communications avionics systems.

The IFR 4000, with its lightweight size (under 8 lbs.), long run time battery (8 hrs) and ergonomic design, will provide the user with the most portable navigational communications ramp test set on the market today. Cockpit and bench use testing can be easily interchanged.

The menu driven functionality and guided test capability make this instrument extremely easy to use. Combine these benefits with the outstanding price and the user has an instrument that delivers total value


  • Morse code provides 1-4 characters transmitted in the VOR and ILS localizer mode
  • Generation of ARINC 596 selective calling tones
  • Simulation of Localizer and Glideslope (CAT I, II, and III) Signals with variable DDM settings
  • Accurate measurement of VHF/UHF antenna and or feeder SWR (Standing Wave Ratio)
  • Simulation of marker beacon, selectable outer, middle, and inner marker tones


  • Battery operation 8 hours plus
  • Guided test capability cuts down total test time
  • Low cost ELT option
  • Software updates downloaded via website
  • Frequency counter provides external frequency measurement


  • Accurate measurement of 121.5/243 MHz emergency beacon transmitter frequency, output power, modulation (AM). Headphone audio output to monitor swept tone
  • Accurate measurement of 406 MHz COSPAS/ SARSAT emergency beacon transmitter frequency and output power
  • Decode and display all location and user protocols