The TWAL 1822-250 from BONN Elektronik is a RF Amplifier with Frequency 18 to 22 GHz, Gain 54 to 57 dB, Gain Flatness ±3 dB, Noise Figure 20 dB, Output Power 53.97 to 54.77 dBm. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for TWAL 1822-250 can be seen below.