The XTD-400DBL from Comtech Xicom Technology is a RF Amplifier with Frequency 5.85 to 14.5 GHz, Small Signal Gain 69 dB pk-pk, Gain Flatness 1 to 2.5 dB. Tags: Power Amplifier, Travelling Wave Tube Amplifier. More details for XTD-400DBL can be seen below.