The 75P-179 from JFW Industries is a RF Variable Attenuator with Frequency 450 MHz to 2.15 GHz, Attenuation Range 63.5 dB, Attenuation Step 0.5 dB, Power 0.1 W, P1dB 20 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 75P-179 can be seen below.