ENR 4  RADIO NAVIGATION AIDS/SYSTEMS

ENR 4.1  Radio navigation aids - en-route

4.1.1  En-Route aids

Note 1: If antennas of collocated VOR and DME do not have the same coordinates position of VOR/DME (on charts, in description of AWY etc.) is expressed by the coordinates of DME antenna.

Note 2: VOR indication within FIR PRAHA is not guaranteed for receivers with low immunity to VHF FM broadcast (see ICAO Annex 10, Vol I, Chapter 3, 3.3.8).

Note 3: FRA point relevance:

  • (E) = FRA Horizontal Entry point,

  • (X) = FRA Horizontal Exit point,

  • (I) = FRA Intermediate point,

  • (A) = FRA Arrival Connection point,

  • (D) = FRA Departure Connection point.

Name of station
Type of Aid
MAG Variation
VOR Declination
IDFrequency (CH)Hours of operationCoordinatesELEV of DME AntennaFRA relevanceRemarks
12345678

4.1.2  DME aids on civil aerodromes

4.1.2.1 These DME are part of ILS. They can be used for en-route navigation (scaning deck DME).
Name of station
Type of Aid
MAG Variation
VOR Declination
IDFrequency (CH)Hours of operationCoordinatesELEV of DME AntennaFRA relevanceRemarks
12345678