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Wikipedia definition
1. Pilot Controlled LightingPilot Controlled Lighting (PCL), also known as Aircraft Radio Control of Aerodrome Lighting (ARCAL) or Pilot Activated Lighting (PAL), is a system which allows aircraft pilots to control the lighting of an airport or airfield's approach lights, runway edge lights, and taxiways via radio. At some airfields, the aerodrome beacon may also be ARCAL controlled.
Read “Pilot Controlled Lighting” on English Wikipedia
Read “パイロット・コントロールド・ライティング” on Japanese Wikipedia
Read “Pilot Controlled Lighting” on DBpedia

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