The ATi1-2 from Narda-ATM is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power 2 W, Average Power Forward 2 W, Peak Power Forward 0.075 kW, Insertion Loss 0.35 to 0.5 dB. Tags: Module with Connector, Coaxial Isolator. More details for ATi1-2 can be seen below.