The 50P-1819 from JFW Industries is a RF Variable Attenuator with Frequency 0.5 to 32 MHz, Attenuation Range 35 dB, Attenuation Step 5 dB, Power 30 W, Insertion Loss 1.2 dB. Tags: Benchtop, Programmable, Digital, Computer Controlled. More details for 50P-1819 can be seen below.