The XTD-400K from Comtech Xicom Technology is a RF Amplifier with Frequency 13.75 to 14.50 GHz, Small Signal Gain 75 dB pk-pk, Gain Flatness ±1 to 2.5 dB, Harmonics -60 dBc. Tags: Power Amplifier, Travelling Wave Tube Amplifier. More details for XTD-400K can be seen below.