The CC-1550-061 from RF & Noise Components is a RF & Microwave Circulator with Frequency 1.4 to 1.7 GHz, Average Power Forward 250 W, Insertion Loss 0.3 to 0.5 dB, Isolation 21 to 24 dB, Return Loss 21 to 24 dB. Tags: Coaxial Circulator. More details for CC-1550-061 can be seen below.