The TX9M1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 900 MHz to 1.1 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.5 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for TX9M1 can be seen below.