The 50P-1037 from JFW Industries is a RF Variable Attenuator with Frequency 0.5 to 32 MHz, Attenuation Range 28 dB, Attenuation Step 4 dB, Power 30 W, Insertion Loss 1.2 dB. Tags: benchtop, Programmable, Digital, Computer Controlled. More details for 50P-1037 can be seen below.