The RMIS25.1805-1880Nf from Response Microwave Inc is a RF & Microwave Isolator with Frequency 1.8 to 1.88 GHz, Average Power Forward 50 W, Insertion Loss 0.3 dB, Isolation 25 dB. Tags: Module with Connector, Coaxial Isolator. More details for RMIS25.1805-1880Nf can be seen below.