The TWAL 4050-40 from BONN Elektronik is a RF Amplifier with Frequency 40 to 50 GHz, Gain 46 to 52 dB, Gain Flatness ±6 dB, Noise Figure 20 dB, Output Power 46.02 to 46.98 dBm. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for TWAL 4050-40 can be seen below.