The ATS5A from Cobham Signal & Control Solutions is a RF Variable Attenuator with Frequency 2 to 4 GHz, Attenuation Range 15.5 dB, Attenuation Accuracy ± 0.5 to ± 1.0 dB, Power 1 W, Insertion Loss 3.1 dB. Tags: Module with Connectors, Programmable, Digital. More details for ATS5A can be seen below.