The C1DR1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.9 to 2 GHz, Average Power 80 W, Average Power Forward 80 W, Insertion Loss 0.3 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for C1DR1 can be seen below.