The XT-400 is a compact, self-contained, antenna mountable power amplifier designed for low cost installtion and long life.The XT-400 design eliminates the need for an amplifier shelter as well as a long waveguide run between the amplifier and the antenna feed horn. RF filter, cooling, and monitoring & control systems are all self contained within the HPA. These features provide high reliability, low maintenance costsm, and low replacement costs.
The XT-400 incorpoarated high efficiency, dual-stage collector TWTs. Some of the benefits of this type of TWT are: reduced prime power consumption, lower internal operating temperatures, and realibilty enchancement.These benefits are obtained for both the linear and saturated modes of operation.The XTD-400 incorporates power factor correction circuitry which minimize line current distortion and reduces the required volt-amps.The combination of power factor correction and high efficiency TWTs reduces input Volt-Amps by 45% when compared to equivalent amplfiers.A high frequency resonant conversion powr supply is used that accepts a wide range of prime power (100 to 260 VAC).The automatic features of the power supply include quick recovery from prime power outages and multiple helix fault resets (three faults cycles)
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