The WTA 50-75 | 4700051 from Radiometer Physics GmbH is a Waveguide Attenuator with Frequency 50 to 75 GHz, Average Power 0.1 W, Attenuation 0 to 40 dB, Insertion Loss 0.1 dB. Tags: Calibrated Attenuator. More details for WTA 50-75 | 4700051 can be seen below.