The RMCI.600-800Sf from Response Microwave Inc is a RF & Microwave Circulator with Frequency 600 to 800 MHz, Average Power Forward 100 W, Average Power Reverse 10 W, Insertion Loss 0.5 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for RMCI.600-800Sf can be seen below.