The XTRT-500DBS from Comtech Xicom Technology is a RF Amplifier with Frequency 17.3 to 18.1 GHz, Small Signal Gain 70 dB pk-pk, Gain Flatness 1 to 4 dB, Harmonics -60 dBc. Tags: Benchtop / Rackmount, Power Amplifier, Travelling Wave Tube Amplifier, Pre-Amplifier. More details for XTRT-500DBS can be seen below.