- At most aerodromes lighting duration is 20 minutes
- By keying the aircraft transmitter
- on the designated frequency
- the lighting options change.
- Five rapid and short transmissions,
- collectively not exceeding three seconds.
- To change intensity, repeat activation sequence,but
- hold the button down on the last transmission.
- Lighting intensity continuously cycles
- until the transmit button is released.
- Where alternative runways are available the cycling will
- include changing to the next runway(s) and
- cycling their brilliance before starting the cycle again.
- At any time a single transmission will
- reset the lighting timer for a further 20 minutes.
- Note: There is no warning prior to the lights turning off.