The 75P-157 from JFW Industries is a RF Variable Attenuator with Frequency DC to 1 GHz, Attenuation Range 95.5 dB, Attenuation Step 0.5 dB, Power 0.5 W, Insertion Loss 1.9 to 2.5 dB. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 75P-157 can be seen below.