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To consider the answer for the initial question in this thread, how it works. I do not know the full details but I was given a quick run down while I was working up there on the MWA. In simple terms the individual elements can be phased differently to capture either a broad angle or a narrow angle. I have been too busy with my studies to follow it up.
It seems to be similar to the principle of the phased array for the MWA. Each MWA element can be phased electronically to remain flat on the ground and yet steer it reception based on the rotation of the earth.
It takes approx 8 seconds to acquire an single image, but that information was digested just over a year ago.
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