The CVA17-30/DNF from MCLI is a RF Variable Attenuator with Frequency 1 to 8 GHz, Attenuation Range 30 dB, Power 7 W, Peak Power 64.77 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for CVA17-30/DNF can be seen below.