The C-7S83U-30 from Teledyne Microwave Solutions is a RF & Microwave Circulator with Frequency 7.0 to 17.0 GHz, Average Power Forward 50 W, Peak Power 1000 W, Insertion Loss 0.7 dB, Isolation 16 dB. Tags: Coaxial Circulator. More details for C-7S83U-30 can be seen below.