The TH701A / 8-12GHz from Sainty-Tech Communications Limited is a RF & Microwave Circulator with Frequency 8 to 12 GHz, Insertion Loss 0.5 dB, Isolation 20 dB, Operating Temperature -40 to 70 Degree C. Tags: Coaxial Circulator. More details for TH701A / 8-12GHz can be seen below.