The Q-Band Downlink TWTA from Stellant Systems is a SATCOM Amplifier System with Frequency 37.5 to 43.5 GHz, Small Signal Gain 43 to 56 dB(Saturated Gain), Power 200 W, Power 200 W. Tags: Module with Connectors, TWTA. More details for Q-Band Downlink TWTA can be seen below.