The GL-T-820-840-40-100 from A-Info is a RF & Microwave Isolator with Frequency 820 to 840 MHz, Average Power Forward 100 W, Average Power Reverse 20 W, Insertion Loss 1 dB, Isolation 40 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-820-840-40-100 can be seen below.