The CNA-0790 from Stellant Systems is a RF & Microwave Circulator with Frequency 0.7 to 0.9 GHz, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -20 to 65 Degree C. Tags: Module with Connector, Coaxial Circulator. More details for CNA-0790 can be seen below.