The CC-470-018 from RF & Noise Components is a RF & Microwave Circulator with Frequency 460 to 480 MHz, Average Power Forward 250 W, Insertion Loss 0.3 to 0.35 dB, Isolation 20 to 23 dB, Return Loss 20 to 23 dB. Tags: Coaxial Circulator. More details for CC-470-018 can be seen below.