The T1DG11 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.477 to 1.487 GHz, Average Power 100 W, Average Power Forward 100 W, Insertion Loss 0.25 dB, Isolation 25 dB. Tags: Drop-In, Drop-In Isolator. More details for T1DG11 can be seen below.