Digital attenuators are a critical part of mobile network test platforms where flexibility in controlling signal strength is vital. Multipath fading is a commonly occurring problem with obstacles, such as mountains or buildings, absorbing and reflecting signals. Programmable attenuators’ flexible features can be used in fading simulation applications where multipath scenarios can occur. For example, in handover testing, radar processing, digital radio communications, and GPS receivers. In these cases, the fading simulator and customized test system with multipath switching is the key to optimizing mobile network performance.