IFR (Marconi) 2186 Programmable Attenuator Repair And Test

Let's find out why this IFR 2186 programmable RF attenuator is not working properly and what needs to be done to repair it. Also a look at how the attenuator works and how to measure the internal attenuators with a spectrum analyzer or an ohm meter. Test equipment used includes an Anritsu MS2711D spectrum analyzer, Fluke 289 DMM, Rhode & Schwarz SME06 signal generator, HP 8347A amplifier, and HP 8594E spectrum analyzer with tracking generator. As a final test, let's see how to verify that the full 130 dB attenuation is working using the HP 3585A spectrum analyzer.
This attenuator model is the same as the Marconi and Aeroflex 2186.

#electronicsrepair #testequipment #learnelectronics

Видео IFR (Marconi) 2186 Programmable Attenuator Repair And Test канала Erik's Electronics Workbench