The GL-T-1800-1880-25-10 from A-Info is a RF & Microwave Isolator with Frequency 1.8 to 1.88 GHz, Average Power Forward 10 W, Average Power Reverse 5 W, Insertion Loss 0.25 dB, Isolation 25 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-1800-1880-25-10 can be seen below.