The XTD-450KD from Comtech Xicom Technology is a RF Amplifier with Frequency 13.75 to 18.4 GHz, Small Signal Gain 75 dB pk-pk, Gain Flatness 1 to 4 dB, Linear Power 56.02 dBm, Linear Power 400 W. Tags: Power Amplifier, Travelling Wave Tube Amplifier. More details for XTD-450KD can be seen below.