The T1YG1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1 to 1.4 GHz, Average Power 150 W, Average Power Forward 150 W, Insertion Loss 0.5 dB, Isolation 16 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1YG1 can be seen below.