Navigation & Radio at Athens Ben Epps Airport
US
AHN
/
KAHN
Radio Frequencies
8
Navigation Aids
4
Radio Frequencies
A/D
127.500 MHz
ATLANTA APP/DEP
ID: 58779
Ref: 3369
ASOS
132.875 MHz
ASOS
ID: 58780
Ref: 3369
CLD
127.500 MHz
ATLANTA CNTR
ID: 58781
Ref: 3369
CTAF
126.300 MHz
CTAF
ID: 58782
Ref: 3369
GND
121.800 MHz
GND
ID: 58783
Ref: 3369
RDO
109.600 MHz
MACON RDO
ID: 58784
Ref: 3369
TWR
126.300 MHz
TWR
ID: 58785
Ref: 3369
UNIC
122.950 MHz
UNICOM
ID: 58786
Ref: 3369
Navigation Aids
AHN
VORTAC
109.600 MHz
Athens
Location
Latitude:
33.947601°
Longitude:
-83.324799°
Elevation:
790 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-4.570°
DME Information
Channel:
033X
Frequency:
109.600 MHz
ID: 85321
AHN
VORTAC
109.600 MHz
Athens
Location
Latitude:
33.947601°
Longitude:
-83.324799°
Elevation:
790 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-4.570°
DME Information
Channel:
033X
Frequency:
109.600 MHz
ID: 85321
BJT
NDB
0.221 MHz
Bulldog
Location
Latitude:
33.951500°
Longitude:
-83.219597°
Elevation:
738 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-5.000°
ID: 86078
BJT
NDB
0.221 MHz
Bulldog
Location
Latitude:
33.951500°
Longitude:
-83.219597°
Elevation:
738 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-5.000°
ID: 86078
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