Variable attenuators allow you to adjust the attenuation level from 0 to 25 decibels. The adjustment is carried out by changing the distance between the connecting elements. You can select to enter attenuation in. Passive attenuators use resistor networks for signal reduction without power, while active attenuators can include components like MOSFETs and PIN diodes for adjustable attenuation levels. This type of component is generally used to balance signal levels in the signal chain, to extend the dynamic range of a system, to provide impedance matching, and to. This section describes how attenuation is handled by the NI–TUNER driver. The downconverter signal chain has five programmable attenuators: three RF attenuators at the beginning of the chain. An attenuator is a device designed to reduce the intensity of electrical and electromagnetic oscillations smoothly, stepwise, or at a fixed rate.
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