Navigational aids (Navigational aids-Navaids) are radio navigation infrastructure which supports navigation for enroute, navigation for precision and non-precision approach, as well as navigation for precision landing.
Emitted radio waves provide the pilot information for aircraft position, direction and distance from the reference navigational aid located on the ground. As far as the latest aircraft generations are concerned, there is a possibility of simultaneous reception of more signals from the ground radio navigation aids and the aircraft position is determined with their processing.
In Republic of Macedonia, within the frameworks of  M-NAV, PCL , there are various types of navigational aids being certified according to international standards.
They are as follows:
  • Two systems for precision instrument approach and landing (ILS-Instrument Landing System), such as one CAT II at the Airport Alexander the Great-Skopje and one CAT I at Ohrid “St. Paul the Apostle” Airport,
  • Two CVOR/DME (Conventional VHF Omni Directional Range/Distance Measuring Equipment) and one DVOR/DME (Doppler VHF Omni directional Range/Distance Measuring Equipment) used as enroute or terminal navigational aids,
    Two  NDB/DME (Non-Directional Beacon/Distance Measuring Equipment) used as enroute or terminal navigational aid,
  • Two NDB (Non Directional Beacon) locators, one of which is for Airport Aleaxander the Great and the other one for Ohrid “St. Paul the Apostle” Airport.
The systems are equipped with Remote Control and Monitoring System intended for permanent operation monitoring and controlling of their parameters.
All systems are manufactured and maintained in compliance with strict international standards, having an aim to ensure a safe, permanent, accurate and high-quality service to all the aircrafts operating in the airspace of Republic of Macedonia.