The STA5450 from Spacepath Communications is a SATCOM Amplifier System with Frequency 17.3 to 18.1 GHz / 17.3 to 18.4 GHz, TWT Power 500 W, Flange Power 420 W, Small Signal Gain 70 dB, Gain Adjustment Range 30 dB. Tags: System, TWTA. More details for STA5450 can be seen below.