The TWAL 1840-40L from BONN Elektronik is a RF Amplifier with Frequency 18 to 40 GHz, Gain 46 to 54 dB, Gain Flatness ±7.5 dB, Noise Figure 20 dB, Output Power 46.02 to 47.78 dBm. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for TWAL 1840-40L can be seen below.