The RFLC-303-1 from RF-Lambda is a RF & Microwave Circulator with Frequency 1.7 to 2.7 GHz, Bandwidth 50 MHz, Average Power Forward 10 W, Insertion Loss 0.3 dB, Isolation 23 dB. Tags: Coaxial Circulator. More details for RFLC-303-1 can be seen below.