The FMCR1034 from Fairview Microwave is a RF & Microwave Circulator with Frequency 4 to 8 GHz, Average Power Forward 80 W, Average Power Reverse 80 W, Insertion Loss 0.6 dB, Isolation 17 dB. Tags: Coaxial Circulator. More details for FMCR1034 can be seen below.