The VCI-1618 from VidaRF is a RF & Microwave Isolator with Frequency 1.6 to 1.8 GHz, Average Power Forward 65 W, Insertion Loss 0.4 dB, Isolation 21 dB, Operating Temperature 0 to 50 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for VCI-1618 can be seen below.