The QEQ4.5-13-11 from Qualink Microwave is a Gain Equalizer with Frequency 4.5 to 13 GHz, Gain Equalization 11 dB, Insertion Loss 1.5 dB, Impedance 50 Ohms. Tags: Module with Connectors, Positive Gain Slope. More details for QEQ4.5-13-11 can be seen below.