The A0P-73X-0KK from G.T. Microwave, Inc. is a RF Variable Attenuator with Frequency 12 to 16 GHz, Attenuation Range 45 dB, Attenuation Step 0.25 dB, Power 1 W, P1dB 15 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for A0P-73X-0KK can be seen below.