The TX2K2 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 235 to 240 MHz, Average Power 75 to 200 W, Average Power Forward 75 to 200 W, Insertion Loss 1 dB, Isolation 40 dB. Tags: Module with Connectors, Coaxial Isolator. More details for TX2K2 can be seen below.