The RMIS.5800-6800Sf from Response Microwave Inc is a RF & Microwave Isolator with Frequency 5800 to 6800 MHz, Average Power Forward 30 W, Average Power Reverse 10 W, Insertion Loss 0.4 dB, Isolation 20 dB. Tags: Coaxial Isolator. More details for RMIS.5800-6800Sf can be seen below.