The VZA-6903E3 from Communications & Power Industries is a RF Amplifier with Frequency 27.5 to 31 GHz, Gain 75 to 80 dB, Small Signal Gain 1 to 5 dB pk-pk, Harmonics -30 dBc, Phase Noise 10 dB. Tags: Benchtop / Rackmount, Power Amplifier. More details for VZA-6903E3 can be seen below.