Which radar type provides en-route surveillance with a range of about 100 to 250 nautical miles?

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Multiple Choice

Which radar type provides en-route surveillance with a range of about 100 to 250 nautical miles?

Explanation:
Long-range en-route surveillance is provided by Air Route Surveillance Radar. This system is designed to cover large swaths of airspace between airports, with typical ranges from about 100 to 250 nautical miles depending on altitude and radar capabilities. It usually combines primary radar returns with transponder (SSR) data to present controllers with accurate tracks, identities, and altitudes for aircraft cruising on airways. The other systems are oriented to terminal or surface operations—Airport Surveillance Radar monitors the area around a specific airport, Airport Surface Detection Equipment watches the ground movements on the airfield, and Precision Runway Monitoring focuses on high-precision runway approaches. So the described capability aligns with Air Route Surveillance Radar.

Long-range en-route surveillance is provided by Air Route Surveillance Radar. This system is designed to cover large swaths of airspace between airports, with typical ranges from about 100 to 250 nautical miles depending on altitude and radar capabilities. It usually combines primary radar returns with transponder (SSR) data to present controllers with accurate tracks, identities, and altitudes for aircraft cruising on airways. The other systems are oriented to terminal or surface operations—Airport Surveillance Radar monitors the area around a specific airport, Airport Surface Detection Equipment watches the ground movements on the airfield, and Precision Runway Monitoring focuses on high-precision runway approaches. So the described capability aligns with Air Route Surveillance Radar.

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