The TY9F1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 950 MHz to 1.05 GHz, Average Power 1 W, Average Power Forward 1 W, Insertion Loss 0.6 dB, Isolation 15 dB. Tags: Drop-In, Drop-In Isolator. More details for TY9F1 can be seen below.