What does LORO mean in Military?

Loro

Lobe switching is a method used on early radar sets to improve tracking accuracy. It uses two slightly separated antenna elements to send the beam slightly to either side of the midline of the antenna. The radar signal switched between the two and produced two "blips" on the display. By comparing the lengths of the blips, the operator could find which one gave the stronger return, thereby indicating which direction the antenna should be moved to point directly at the target. The concept was used only briefly, and was almost completely replaced by conical scanning systems by the end of World War II. The concept is also infrequently referred to as sequential lobing, particularly when the signal steps between several different angles rather than just two.

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