The 1-2 GHz Coax Isolator from Scientific Microwave Corporation is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Peak Power 20 kW, Insertion Loss 0.6 dB, Isolation 14 dB. Tags: Coaxial Isolator. More details for 1-2 GHz Coax Isolator can be seen below.