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

The Marconi Instruments 2955B is a used Radio Communications Test Set. The Marconi Instruments 2955B, Radio Communications Test Set, that combines all the instruments required for transceiver testing within a single unit. Designed for bench and mobile field service applications in maintenance workshops, the instrument is lightweight, portable and may be operated from all standard AC supplies, or vehicle supplies.

The Ameritec Model AM48 can do a variety of measurements. With its built-in dial capability on dial-up networks it can access a distant responder or a second AM48 for centralized 2-wire testing. You can use a single unit with an Ameritec responder for centralized loop back testing. Or, use two sets for a complete end-to-end test of 4-wire data lines.

For complete transmitter spectrum performance testing, swept antenna and transmission line testing and at-a-glance troubleshooting, the IFR 2975 comes standard with a digitized 2.7 GHz spectrum analyzer and dual-channel digital storage oscilloscope.