The RWVATTN-18.0-26.5-0-WR42-40dB-0.7W-CW-e5 from Raditek is a Waveguide Attenuator with Frequency 18 to 26.5 GHz, Average Power 0.7 W, Attenuation 0 to 40 dB, Insertion Loss 0.5 dB. Tags: Rotary Attenuator. More details for RWVATTN-18.0-26.5-0-WR42-40dB-0.7W-CW-e5 can be seen below.