The ZEQ-3-222S+ from Mini Circuits is a Gain Equalizer with Frequency 950 MHz to 2.15 GHz, Gain Equalization 5.6 dB, Insertion Loss 0.3 to 5.9 dB, Power 20 dBm, Impedance 50 Ohms. Tags: Module with Connectors, Positive Gain Slope. More details for ZEQ-3-222S+ can be seen below.