Navigation & Radio at Dunedin International Airport
NZ
DUD
/
NZDN
Radio Frequencies
10
Navigation Aids
8
Radio Frequencies
AFIS
129.300 MHz
CHRISTCHURCH CON
ID: 55949
Ref: 5028
AFIS
129.300 MHz
CHRISTCHURCH CON
ID: 55949
Ref: 5028
APP
120.700 MHz
APP
ID: 55950
Ref: 5028
APP
120.700 MHz
APP
ID: 55950
Ref: 5028
ATIS
128.800 MHz
ATIS
ID: 55951
Ref: 5028
ATIS
128.800 MHz
ATIS
ID: 55951
Ref: 5028
CTAF
120.700 MHz
CTAF
ID: 55952
Ref: 5028
CTAF
120.700 MHz
CTAF
ID: 55952
Ref: 5028
TWR
120.700 MHz
TWR
ID: 55953
Ref: 5028
TWR
120.700 MHz
TWR
ID: 55953
Ref: 5028
Navigation Aids
BE
NDB
0.394 MHz
Berridale
Location
Latitude:
-46.027802°
Longitude:
169.983002°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
24.533°
ID: 85927
BE
NDB
0.394 MHz
Berridale
Location
Latitude:
-46.027802°
Longitude:
169.983002°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
24.533°
ID: 85927
HL
NDB-DME
0.378 MHz
Henley
Location
Latitude:
-45.945900°
Longitude:
170.162003°
Elevation:
131 ft
Additional Info
Usage:
TERMINAL
Power:
MEDIUM
Mag Var:
24.511°
DME Information
Channel:
104X
Frequency:
115.700 MHz
ID: 88878
HL
NDB-DME
0.378 MHz
Henley
Location
Latitude:
-45.945900°
Longitude:
170.162003°
Elevation:
131 ft
Additional Info
Usage:
TERMINAL
Power:
MEDIUM
Mag Var:
24.511°
DME Information
Channel:
104X
Frequency:
115.700 MHz
ID: 88878
MI
NDB
0.358 MHz
Mosgiel
Location
Latitude:
-45.871399°
Longitude:
170.320007°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
24.490°
ID: 90954
MI
NDB
0.358 MHz
Mosgiel
Location
Latitude:
-45.871399°
Longitude:
170.320007°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
24.490°
ID: 90954
SW
NDB
0.338 MHz
Swampy
Location
Latitude:
-45.797001°
Longitude:
170.477005°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
24.470°
ID: 94081
SW
VOR-DME
112.700 MHz
Swampy
Location
Latitude:
-45.794498°
Longitude:
170.477005°
Elevation:
4 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
24.468°
DME Information
Channel:
074X
Frequency:
112.700 MHz
ID: 94078
Understanding Airport Navigation & Radio Communications
Radio Frequencies in Aviation
Radio frequencies are essential for communication between aircraft, air traffic control, and ground services. Here are the common types:
Common Frequency Types
- ATIS (Automatic Terminal Information Service): Continuous broadcast of airport conditions
- Ground: Communication with ground control for taxi instructions
- Tower: Communication with air traffic control tower
- Approach/Departure: Handling arriving and departing aircraft
- UNICOM/CTAF: Used at airports without control towers
Frequency Ranges
- VHF Band: 118.000 - 136.975 MHz
- Emergency: 121.5 MHz (International emergency frequency)
- Ground Control: Usually 121.6 - 121.9 MHz
- ATIS: Usually 108 - 118 MHz
- UNICOM: Typically 122.8 MHz (uncontrolled airports)
Navigation Aids (Navaids)
Navigation aids are electronic systems that help pilots determine their position and navigate safely. Here are the main types:
Types of Navaids
- VOR (VHF Omnidirectional Range): Provides bearing information to aircraft
- DME (Distance Measuring Equipment): Gives slant-range distance to the station
- NDB (Non-Directional Beacon): Simple radio beacon for basic navigation
- TACAN (Tactical Air Navigation): Military version of VOR/DME
- VORTAC: Combined VOR and TACAN facility
Usage Types & Power Levels
- HI: High altitude navigation
- LO: Low altitude navigation
- TERM: Terminal area navigation
- Power Levels: HIGH, MEDIUM, LOW (affects range)
- RNAV: Area navigation capability
Important Notes
- Always verify frequencies and navaid status in current aviation publications
- Magnetic variation changes over time and should be considered when using navaids
- Some navaids may be out of service or have limited hours of operation
- DME distances are slant-range and may differ from actual ground distance