The HD32952-A from HD Communications Corp is a RF & Microwave Circulator with Frequency 0.15 to 1 GHz, Average Power 800 to 1200 W, Insertion Loss 0.4 dB, Isolation 20 dB, Operating Temperature -20 to 85 Degree C. Tags: Coaxial Circulator. More details for HD32952-A can be seen below.