The WTA 75-110 | 4700053 from Radiometer Physics GmbH is a Waveguide Attenuator with Frequency 75 to 110 GHz, Average Power 0.1 W, Attenuation 0 to 40 dB, Insertion Loss 0.15 dB. Tags: Calibrated Attenuator. More details for WTA 75-110 | 4700053 can be seen below.