The T1FQ1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1 to 1.1 GHz, Average Power 75 W, Average Power Forward 75 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1FQ1 can be seen below.