The PDVAN-8018-60-8-OPT25DMB from Quantic PMI (Planar Monolithics) is a RF Variable Attenuator with Frequency 8.0 to 18.0 GHz, Attenuation Range 60 dB, Attenuation Step 0.25 dB, Power 0.31 W, P1dB 25 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for PDVAN-8018-60-8-OPT25DMB can be seen below.