The T19150901 from POLOMARCONI.IT is a RF & Microwave Circulator with Frequency 854 to 921 MHz, Average Power Forward 70 W, Insertion Loss 0.35 dB, Isolation 23 dB, Return Loss 23 dB. Tags: Module with Connectors, Coaxial Circulator. More details for T19150901 can be seen below.