The GL-T-456-23-30 from A-Info is a RF & Microwave Isolator with Frequency 450 to 600 MHz, Bandwidth 15 MHz, Average Power Forward 3 W, Average Power Reverse 5 W, Insertion Loss 0.3 dB. Tags: Module with Connector, Coaxial Isolator. More details for GL-T-456-23-30 can be seen below.