The CY1M1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 132 to 142 MHz, Average Power 1 kW, Average Power Forward 1 kW, Peak Power 20 kW, Insertion Loss 0.25 dB. Tags: Module with Connectors, Coaxial Isolator. More details for CY1M1 can be seen below.