The DTA-18G40G-30-CD-1 from Quantic PMI (Planar Monolithics) is a RF Variable Attenuator with Frequency 18.0 to 40.0 GHz, Attenuation Range 30 dB, Attenuation Step 0.06 dB, Power 0.25 W, P1dB 24 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for DTA-18G40G-30-CD-1 can be seen below.