How is Type J ARCAL activated?

Type J ARCAL (Aircraft Radio Controlled Aerodrome Lighting) is activated by clicking the microphone a specific number of times to signal the radio-controlled lighting system at an airport. In the context of this question, the correct method to activate Type J ARCAL is to click the microphone five times in quick succession. This signal communicates directly with the ARCAL system, triggering the necessary response to turn on the aerodrome lighting, which can be essential for pilots requiring visual reference during approach or landing, especially in low visibility conditions.

It’s important for pilots to be familiar with the activation methods for the various types of ARCAL as this directly impacts their ability to safely operate in certain aerodromes, particularly those that do not have standard lighting infrastructure.