How is Type K ARCAL activated?

Type K ARCAL, or Automatic Radio Controlled Aerodrome Lighting, is activated by a specific series of microphone clicks, with the correct method being to click the microphone 7 times. This is a standardized procedure that pilots use to control aerodrome lighting in circumstances when visibility is low or during nighttime operations.

The choice to click the mic 7 times is crucial because it helps ensure that the system is activated intentionally and distinguishably among the various control functions present in the aviation communication system. This procedure allows pilots to effectively manage the lighting at aerodromes where visual guidance is essential for safely taxiing, taking off, and landing. Other options, which involve fewer clicks or holding the mic, do not adhere to the protocol for activating this specific lighting system, thereby preventing the successful operation of the ARCAL. Understanding this activation method is important for pilots operating in various aerodrome environments.