The T1CT1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.84 to 1.87 GHz, Average Power 100 W, Average Power Forward 100 W, Insertion Loss 0.6 dB, Isolation 45 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1CT1 can be seen below.