The AT-2000-60D from UMCC is a RF Variable Attenuator with Frequency 10 MHz to 2 GHz, Attenuation Range 60 dB, Attenuation Step 0.25 dB, Power 1 W, P1dB 30 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for AT-2000-60D can be seen below.