The T5DI from Communications & Power Industries is a RF Amplifier with Frequency 17.3 to 18.4 GHz, Gain 70 to 85 dB, Small Signal Gain 1 to 4 dB pk-pk, Output Power Limit 58 to 58.75 dBm, Harmonics -70 dBc. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for T5DI can be seen below.