The QP-EQ18D-0018-05 from QP Microwave is a Gain Equalizer with Frequency 500 MHz to 18 GHz, Gain Equalization 18±1 dB, Slope 18±1 dB, Insertion Loss 1.75 dB, Operating Temperature -40 to 85 Degree C. Tags: Connectorized, Negative Gain Slope. More details for QP-EQ18D-0018-05 can be seen below.