The IS-1011-01 from MCLI is a RF & Microwave Isolator with Frequency 980 MHz to 2.05 GHz, Insertion Loss 0.3 dB, Isolation 20 dB, Operating Temperature -10 to 70 Degree C. Tags: Module with Connector, Coaxial Isolator. More details for IS-1011-01 can be seen below.