The AF087-30 from Narda-ATM is a RF Variable Attenuator with Frequency 12.4 to 18 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 AF087-30 can be seen below.