Navigation & Radio at Osan Air Base
KR
OSN
/
RKSO
Radio Frequencies
11
Navigation Aids
2
Radio Frequencies
APP
127.900 MHz
APP
ID: 54993
Ref: 5655
APP
127.900 MHz
APP
ID: 54993
Ref: 5655
ATIS
132.125 MHz
ATIS
ID: 54994
Ref: 5655
ATIS
132.125 MHz
ATIS
ID: 54994
Ref: 5655
CLD
127.300 MHz
CLNC DEL
ID: 54995
Ref: 5655
DEP
127.900 MHz
DEP
ID: 54996
Ref: 5655
CLD
127.300 MHz
CLNC DEL
ID: 54995
Ref: 5655
GND
132.450 MHz
GND
ID: 54997
Ref: 5655
PMSV
34.650 MHz
PMSV METRO
ID: 54998
Ref: 5655
PTD
120.700 MHz
PTD
ID: 54999
Ref: 5655
TWR
122.100 MHz
TWR
ID: 55000
Ref: 5655
Navigation Aids
OSN
VORTAC
114.700 MHz
Osan
Location
Latitude:
37.091900°
Longitude:
127.029999°
Elevation:
34 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-7.399°
DME Information
Channel:
094X
Frequency:
114.700 MHz
ID: 92121
OSN
VORTAC
114.700 MHz
Osan
Location
Latitude:
37.091900°
Longitude:
127.029999°
Elevation:
34 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-7.399°
DME Information
Channel:
094X
Frequency:
114.700 MHz
ID: 92121
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