The C1DJ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.02 to 1.11 GHz, Average Power 125 W, Average Power Forward 125 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1DJ1 can be seen below.