Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p193
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 193/225)
Character Range: 817081–819760

not be located in an area to which Chapter 6 or Chapter 7 applies.

CHAPTER 19

Division 2 CNS facilities

19.04 Protection of VOR facilities

Note   There are 2 types of VOR, the Conventional VOR (CVOR) and the Doppler VOR (DVOR). The antenna for either type of VOR may be mounted directly on the ground or on an elevated counterpoise structure. Typically the DVOR type has 48 antennas equally spaced on the circumference of a circle approximately 13.5 m in diameter, and one antenna at the centre of the circle. The DVOR is less susceptible than the CVOR to scalloping effects caused by reflective objects or structures in its vicinity.

       (1) For an elevated CVOR, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the CVOR:

(a) any proposal for development within 200 m of the CVOR antenna;

(b) any proposal for development between 200 m and 1 500 m from the centre of the CVOR antenna that exceeds an angle of elevation of 1.5° measured from ground level at the CVOR antenna.

       (2) For a ground-mounted CVOR, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the CVOR:

(a) any proposal for development within 200 m of the CVOR antenna;

(b) any proposal for development between 200 m and 1 500 m from the centre of the CVOR antenna that exceeds an angle of elevation of 1.0° measured from ground level at the CVOR antenna.

       (3) For an elevated DVOR, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the DVOR:

(a) any proposal for development within 100 m of the DVOR antenna;

(b) any proposal for development between 100 m and 1 500 m from the centre of the DVOR antenna that exceeds an angle of elevation of 2.0° measured from ground level at the centre of the DVOR antenna.

       (4) For a ground-mounted DVOR, an aerodrome operator must refer the following for assessment by the navigation service and facility provider responsible for the DVOR:

(a) any proposal for development within 150 m of the DVOR antenna;

(b) any proposal for development between 150 m and 1 500 m from the centre of the DVOR antenna that exceeds an angle of elevation of 1.5° measured from ground level at the centre of the DVOR antenna.

       (5) If the type of VOR facility is not known, the aerodrome operator must contact the navigation service and facility provider responsible for the facility for further information.

19.05 Protection of DME facilities

       (1) If a DME antenna is co-located with a VOR, localizer or glide