The 152AT-70 from Weinschel by Spectrum Control is a RF Variable Attenuator with Frequency DC to 26.5 GHz, Attenuation Range 70 dB, Attenuation Step 10 dB, Power 180 W, Insertion Loss 4.75 dB. Tags: Benchtop, Programmable, Digital, USB Controlled, Computer Controlled. More details for 152AT-70 can be seen below.