The ADC078FD from ADMOTECH is a RF & Microwave Circulator with Frequency 776 to 787 MHz, Average Power Forward 150 W, Average Power Reverse 100 W, Insertion Loss 0.35 to 0.45 dB, Isolation 19 to 21 dB. Tags: Drop-in Circulator. More details for ADC078FD can be seen below.