The VZU-6995AY from Communications & Power Industries is a RF Amplifier with Frequency 17.3 to 18.4 GHz, Gain 70 to 78 dB, Small Signal Gain 1 to 4 dB pk-pk, Output Power Limit 56.10 to 56.99 dBm, Harmonics -60 dBc. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for VZU-6995AY can be seen below.