Navigation & Radio at Duluth International Airport
US
DLH
/
KDLH
Radio Frequencies
16
Navigation Aids
6
Radio Frequencies
A/D
125.450 MHz
APP/DEP
ID: 63767
Ref: 3491
A/D
125.450 MHz
APP/DEP
ID: 63767
Ref: 3491
ATIS
124.100 MHz
ATIS
ID: 63768
Ref: 3491
ATIS
124.100 MHz
ATIS
ID: 63768
Ref: 3491
GND
121.900 MHz
GND
ID: 63769
Ref: 3491
GND
121.900 MHz
GND
ID: 63769
Ref: 3491
POST
28.890 MHz
ANG COMD POST
ID: 63770
Ref: 3491
POST
28.890 MHz
ANG COMD POST
ID: 63770
Ref: 3491
PTD
28.890 MHz
PTD
ID: 63771
Ref: 3491
PTD
28.890 MHz
PTD
ID: 63771
Ref: 3491
RDO
122.350 MHz
PRINCETON RDO
ID: 63772
Ref: 3491
RDO
122.350 MHz
PRINCETON RDO
ID: 63772
Ref: 3491
TWR
118.300 MHz
TWR
ID: 63773
Ref: 3491
TWR
118.300 MHz
TWR
ID: 63773
Ref: 3491
UNIC
122.950 MHz
UNICOM
ID: 63774
Ref: 3491
UNIC
122.950 MHz
UNICOM
ID: 63774
Ref: 3491
Navigation Aids
DL
NDB
0.379 MHz
Pykla
Location
Latitude:
46.845699°
Longitude:
-92.355003°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
0.070°
ID: 87413
DL
NDB
0.379 MHz
Pykla
Location
Latitude:
46.845699°
Longitude:
-92.355003°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
0.070°
ID: 87413
DLH
VORTAC
112.600 MHz
Duluth
Location
Latitude:
46.802200°
Longitude:
-92.202904°
Elevation:
1430 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.011°
DME Information
Channel:
073X
Frequency:
112.600 MHz
ID: 87421
DLH
VORTAC
112.600 MHz
Duluth
Location
Latitude:
46.802200°
Longitude:
-92.202904°
Elevation:
1430 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.011°
DME Information
Channel:
073X
Frequency:
112.600 MHz
ID: 87421
LKI
TACAN
135.400 MHz
Lakeside
Location
Latitude:
46.845001°
Longitude:
-92.185097°
Elevation:
1430 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.026°
DME Information
Channel:
011X
Frequency:
135.400 MHz
ID: 90383
LKI
TACAN
135.400 MHz
Lakeside
Location
Latitude:
46.845001°
Longitude:
-92.185097°
Elevation:
1430 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.026°
DME Information
Channel:
011X
Frequency:
135.400 MHz
ID: 90383
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