The TG201J /1-2GHz from Sainty-Tech Communications Limited is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power Reverse 10 W (Load), Insertion Loss 0.7 dB, Isolation 16 dB, Operating Temperature 0 to 60 Degree C. Tags: Coaxial Isolator. More details for TG201J /1-2GHz can be seen below.