The CN-MF-1000-3 from Novaris is a RF Surge Protector with Frequency DC to 3 GHz, Input Power 40 W, Insertion Loss 0.1 dB, Operating Temperature -40 to 85 Degree C, Return Loss 26 dB. Tags: Gas Discharge Tube. More details for CN-MF-1000-3 can be seen below.