The 152T-15 & 152T-90 from Weinschel by Spectrum Control is a RF Variable Attenuator with Frequency DC to 26.5 GHz, Attenuation Range 105 dB, Attenuation Step 1 dB, Power 180 W, Insertion Loss 6.5 dB. Tags: Benchtop, Programmable, Digital, USB Controlled, Computer Controlled. More details for 152T-15 & 152T-90 can be seen below.