The ATc10.7-11.7 from Narda-ATM is a RF & Microwave Circulator with Frequency 10.7 to 11.7 GHz, Average Power Forward 2 W, Peak Power 50 W, Insertion Loss 0.15 to 0.2 dB, Isolation 23 to 26 dB. Tags: Coaxial Circulator. More details for ATc10.7-11.7 can be seen below.