The AF065C3-10 from Narda-ATM is a RF Variable Attenuator with Frequency 3.4 to 4.2 GHz, Attenuation Range 10 dB, Power 7 W, Peak Power 64.77 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Continuously Variable, Rotary. More details for AF065C3-10 can be seen below.