The 50PA-771 from JFW Industries is a RF Variable Attenuator with Frequency DC to 3 GHz, Attenuation Range 85 dB, Attenuation Accuracy 0.3 to 0.6 dB, Power 1 W, Insertion Loss 2.75 to 4.75 dB. Tags: Benchtop, Programmable, Multi-Channel, System, Digital, Computer Controlled. More details for 50PA-771 can be seen below.