Electrical and Optical Interference


What are electrical and optical interference effects?

Electrical interference effects:

  • Interference with the radio signal from air navigation facilities (VOR, NDB, ILS, DME, GNNS or radio equipment) due to shadowing, distortion, attenuation.

Optical interference:

  • Glare and reflections on e.g. pilots or air traffic control employees (due to PV systems or exhaust plumes, etc.).
  • Danger of confusion with navigation or approach lighting systems.
A distinction is made between interference within, below and outside safety zones.
The competent authorities for electrical and optical interference are: 
  1. within safety zones of civil aerodromes: BMK
  2. within safety zones of military airfields: BMLV
  3. below and outside safety zones: Austro Control GmbH