The TWAL 2731-350 from BONN Elektronik is a RF Amplifier with Frequency 27.5 to 31 GHZ, Gain 57 to 62 dB, Gain Flatness ±5 dB, Noise Figure 20 dB, Output Power 55.44 to 56.98 dBm. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for TWAL 2731-350 can be seen below.