The ISO01F4P-7523 from ETL Systems is a RF & Microwave Isolator with Frequency 470 to 550 MHz, Average Power Forward 100 W, Average Power Reverse 30 W, Insertion Loss 0.45 dB, Isolation 19 dB. Tags: Module with Connector, Coaxial Isolator. More details for ISO01F4P-7523 can be seen below.