The DTA-22G28G-50-CD-1 from Quantic PMI (Planar Monolithics) is a RF Variable Attenuator with Frequency 22.5 to 27.5 GHz, Attenuation Range 51.175 dB, Attenuation Step 0.04 dB, Power 0.01 W, P1dB 10 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for DTA-22G28G-50-CD-1 can be seen below.