The HX-T-67-22-500 from A-Info is a RF & Microwave Circulator with Frequency 600 to 700 MHz, Average Power Forward 500 W, Average Power Reverse 100 W, Insertion Loss 0.5 dB, Isolation 22 dB. Tags: Coaxial Circulator. More details for HX-T-67-22-500 can be seen below.