The Passive Attenuator is a purely passive resistive network (hence no supply) which is used in a wide variety of electronic equipment for extending the dynamic range of measuring equipment by adjusting signal levels, to provide impedance matching of oscillators or amplifiers to. The Passive Attenuator is a purely passive resistive network (hence no supply) which is used in a wide variety of electronic equipment for extending the dynamic range of measuring equipment by adjusting signal levels, to provide impedance matching of oscillators or amplifiers to. A Passive Attenuator is a bidirectional electronic circuit that comes with resistance as the main component. Attenuators are 2-pin resistive circuits that are used for delivering power in the circuit where the load is connected. A passive attenuator reduces the amount of power delivered to the. A Passive Attenuator is a purely resistive network that can be used to control the level of the output signal The Passive Attenuator is a purely resistive network that is used to weaken or “attenuate” a signal level without using an external power source.