The CVA34-30 from MCLI is a RF Variable Attenuator with Frequency 406 MHz, Attenuation Range 30 to 50 dB, Power 2 W, Peak Power 60 dBm, Insertion Loss 0.5 to 1 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for CVA34-30 can be seen below.