The ATi18-26.5 from Narda-ATM is a RF & Microwave Isolator with Frequency 18 to 26.5 GHz, Average Power 2 W, Average Power Forward 2 W, Peak Power Forward 0.03 kW, Insertion Loss 0.7 to 0.8 dB. Tags: Module with Connector, Coaxial Isolator. More details for ATi18-26.5 can be seen below.