Navigation & Radio at Jose Maria Córdova International Airport
CO
MDE
/
SKRG
Radio Frequencies
7
Navigation Aids
6
Radio Frequencies
APP
121.100 MHz
MEDELLIN APP
ID: 51417
Ref: 6158
ATIS
115.100 MHz
ATIS
ID: 51418
Ref: 6158
GND
121.900 MHz
GND
ID: 51419
Ref: 6158
INFO
127.200 MHz
MEDELLIN FIS
ID: 51420
Ref: 6158
RDO
348.800 MHz
MEDELLIN RDO
ID: 51421
Ref: 6158
RDO
891.800 MHz
MEDELLIN RDO
ID: 51422
Ref: 6158
TWR
118.600 MHz
TWR
ID: 51423
Ref: 6158
Navigation Aids
LI
NDB
0.274 MHz
Medellin
Location
Latitude:
6.207270°
Longitude:
-75.421898°
Elevation:
7034 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
-4.593°
ID: 90330
LI
NDB
0.274 MHz
Medellin
Location
Latitude:
6.207270°
Longitude:
-75.421898°
Elevation:
7034 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
-4.593°
ID: 90330
MRN
VOR-DME
113.000 MHz
Marinilla
Location
Latitude:
6.176390°
Longitude:
-75.323898°
Elevation:
7054 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-5.030°
DME Information
Channel:
077X
Frequency:
113.000 MHz
ID: 91251
MRN
VOR-DME
113.000 MHz
Marinilla
Location
Latitude:
6.176390°
Longitude:
-75.323898°
Elevation:
7054 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-5.030°
DME Information
Channel:
077X
Frequency:
113.000 MHz
ID: 91251
RNG
VOR-DME
115.100 MHz
Rionegro
Location
Latitude:
5.980560°
Longitude:
-75.418297°
Elevation:
8679 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.570°
DME Information
Channel:
098X
Frequency:
115.100 MHz
ID: 93162
RNG
VOR-DME
115.100 MHz
Rionegro
Location
Latitude:
5.980560°
Longitude:
-75.418297°
Elevation:
8679 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.570°
DME Information
Channel:
098X
Frequency:
115.100 MHz
ID: 93162
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