The LP-GTV-SFM from Times Microwave Systems is a RF Surge Protector with Frequency DC to 7000 MHz, Input Power 150 W, Insertion Loss 0.2 to 0.3 dB, Operating Temperature -40 to 85 Degree C, Return Loss 17 to 20 dB. More details for LP-GTV-SFM can be seen below.