Navigation & Radio at St. Louis Lambert International Airport
US
STL
/
KSTL
Radio Frequencies
22
Navigation Aids
6
Radio Frequencies
APP
120.050 MHz
ST LOUIS APP
ID: 66193
Ref: 3905
APP
121.025 MHz
SOUTH/WEST SECONDARY
ID: 66194
Ref: 3905
APP
123.700 MHz
SAINT LOUIS APPROACH SECONDARY
ID: 509952
Ref: 3905
APP
123.700 MHz
SAINT LOUIS APPROACH SECONDARY
ID: 509952
Ref: 3905
ATIS
125.025 MHz
ATIS
ID: 66195
Ref: 3905
CLD
119.500 MHz
CLNC DEL
ID: 66196
Ref: 3905
DEP
119.150 MHz
ST LOUIS DEP N/E
ID: 66197
Ref: 3905
DEP
128.100 MHz
ST LOUIS DEP S/W
ID: 509953
Ref: 3905
GND
118.925 MHz
RWAY 11-29
ID: 66199
Ref: 3905
GND
121.650 MHz
SAINT LOUIS GROUND OUTBOUND
ID: 509949
Ref: 3905
GND
121.900 MHz
SAINT LOUIS GROUND INBOUND
ID: 509950
Ref: 3905
OPS
29.790 MHz
ANG OPS
ID: 66200
Ref: 3905
RDO
122.050 MHz
ST LOUIS RDO
ID: 66201
Ref: 3905
RDO
122.050 MHz
ST LOUIS RDO
ID: 66201
Ref: 3905
TWR
118.500 MHz
RWAY 12R-30L
ID: 66203
Ref: 3905
TWR
118.500 MHz
RWAY 12R-30L
ID: 66203
Ref: 3905
TWR
120.050 MHz
RWAY 12L-30R
ID: 66202
Ref: 3905
TWR
120.050 MHz
RWAY 12L-30R
ID: 66202
Ref: 3905
TWR
132.475 MHz
RWY 06 AND 11-29
ID: 509951
Ref: 3905
TWR
132.475 MHz
RWY 06 AND 11-29
ID: 509951
Ref: 3905
UNIC
122.950 MHz
UNICOM
ID: 66204
Ref: 3905
UNIC
122.950 MHz
UNICOM
ID: 66204
Ref: 3905
Navigation Aids
CSX
VOR-DME
116.450 MHz
Cardinal
Location
Latitude:
38.752701°
Longitude:
-90.360901°
Elevation:
530 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-0.180°
DME Information
Channel:
111Y
Frequency:
116.450 MHz
ID: 87072
CSX
VOR-DME
116.450 MHz
Cardinal
Location
Latitude:
38.752701°
Longitude:
-90.360901°
Elevation:
530 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-0.180°
DME Information
Channel:
111Y
Frequency:
116.450 MHz
ID: 87072
ST
NDB
0.404 MHz
Zumay
Location
Latitude:
38.788101°
Longitude:
-90.278900°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
-0.222°
ID: 93965
ST
NDB
0.404 MHz
Zumay
Location
Latitude:
38.788101°
Longitude:
-90.278900°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
-0.222°
ID: 93965
STL
VORTAC
117.400 MHz
St Louis
Location
Latitude:
38.860699°
Longitude:
-90.482399°
Elevation:
450 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.131°
DME Information
Channel:
121X
Frequency:
117.400 MHz
ID: 93995
STL
VORTAC
117.400 MHz
St Louis
Location
Latitude:
38.860699°
Longitude:
-90.482399°
Elevation:
450 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-0.131°
DME Information
Channel:
121X
Frequency:
117.400 MHz
ID: 93995
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