The E01G02G4 from Microwave Circuits is a Gain Equalizer with Frequency 1 to 2 GHz, Gain Equalization 8 dB, Insertion Loss 1 to 9 dB, Impedance 50 Ohms, Operating Temperature -40 to 80 Degree C. Tags: Module with Connectors, Positive Gain Slope. More details for E01G02G4 can be seen below.