The XTRT-400X from Comtech Xicom Technology is a RF Amplifier with Frequency 7.90 to 8.40 GHz, Small Signal Gain 75 dB pk-pk, Gain Flatness 1 to 3 dB, Harmonics -60 dBc. Tags: Benchtop / Rackmount, Power Amplifier, Travelling Wave Tube Amplifier, Pre-Amplifier. More details for XTRT-400X can be seen below.