The 3617-20 from ARRA Inc. is a RF Variable Attenuator with Frequency 1 to 2 GHz, Attenuation Range 20 dB, Power 50 W, Peak Power 69.03 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 3617-20 can be seen below.