The RWVATTN-26.5-40.0-WR28-0-40dB-0.2W-e5 from Raditek is a Waveguide Attenuator with Frequency 26.5 to 40 GHz, Average Power 0.2 W, Attenuation 0 to 40 dB, Insertion Loss 0.20 dB. Tags: Rotary Attenuator, Calibrated Attenuator. More details for RWVATTN-26.5-40.0-WR28-0-40dB-0.2W-e5 can be seen below.