The S 290 DICW from Southern Microwave Inc is a RF & Microwave Circulator with Frequency 2.7 to 3.1 GHz, Average Power Forward 100 W, Average Power Reverse 100 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Coaxial Circulator. More details for S 290 DICW can be seen below.