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I cannot comment on Eurocontrol radar display systems, but in the US, radar data processing is divided into 10NM squares called sort cells. Each sort cell has a preferred radar, normally (but not always) associated with the nearest radar site. Each cell will generally have a second and sometimes a third radar site to provide data if a satisfactory return is ...


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"Approved separation" means any separation specified in FAA Order JO 7110.65, Air Traffic Control, that has a minima (a numerical value) attached to it. Like "6,000 feet and airborne" or "1,000 feet" for vertical separation, or "3 miles" for radar lateral separation. What about visual separation, you ask? Well, ...


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To answer both your questions in the context of faa-regulations: First, "approved" in those sentences refers to the type of separation provided: "approved separation." This means separation that has been prescribed as being the best tradeoff between safety and efficiency, according to the bureaucrats who create the FAA's separation ...


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The physics fundamental is what happens when an incident electromagnetic waves changes mediums of different speed-of-light transmission index. In the case of the transition is very low energy microwaves going from air medium to metal medium which is millions orders of magnitude slower speed of light results in total reflection. Radar absorbent paints work ...


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