The CX1A4 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 80 to 120 MHz, Average Power 4 kW, Average Power Forward 4 kW, Insertion Loss 0.4 dB, Isolation 18 dB. Tags: Module with Connectors, Coaxial Isolator. More details for CX1A4 can be seen below.