Navigation & Radio at Columbia Regional Airport
US
COU
/
KCOU
Radio Frequencies
8
Navigation Aids
4
Radio Frequencies
A/D
124.375 MHz
MIZZU APP/DEP
ID: 67270
Ref: 3464
ATIS
128.450 MHz
ATIS
ID: 67271
Ref: 3464
CTAF
119.300 MHz
CTAF
ID: 67272
Ref: 3464
GND
121.600 MHz
GND
ID: 67273
Ref: 3464
RDO
122.200 MHz
RDO
ID: 67274
Ref: 3464
TWR
119.300 MHz
TWR
ID: 67275
Ref: 3464
UNIC
122.950 MHz
UNICOM
ID: 67276
Ref: 3464
UNIC
122.950 MHz
UNICOM
ID: 67276
Ref: 3464
Navigation Aids
CO
NDB
0.407 MHz
Zodia
Location
Latitude:
38.716702°
Longitude:
-92.268501°
Elevation:
850 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
1.122°
ID: 86937
CO
NDB
0.407 MHz
Zodia
Location
Latitude:
38.716702°
Longitude:
-92.268501°
Elevation:
850 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
1.122°
ID: 86937
COU
VOR-DME
110.200 MHz
Columbia
Location
Latitude:
38.810799°
Longitude:
-92.218300°
Elevation:
883 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
1.092°
DME Information
Channel:
039X
Frequency:
110.200 MHz
ID: 86973
COU
VOR-DME
110.200 MHz
Columbia
Location
Latitude:
38.810799°
Longitude:
-92.218300°
Elevation:
883 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
1.092°
DME Information
Channel:
039X
Frequency:
110.200 MHz
ID: 86973
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