Navigation & Radio at Mahlon Sweet Field
US
EUG
/
KEUG
Radio Frequencies
16
Navigation Aids
4
Radio Frequencies
A/D
119.600 MHz
CASCADE APP/DEP
ID: 68193
Ref: 3517
A/D
119.600 MHz
CASCADE APP/DEP
ID: 68193
Ref: 3517
ATIS
125.225 MHz
ATIS
ID: 68194
Ref: 3517
ATIS
125.225 MHz
ATIS
ID: 68194
Ref: 3517
CLD
121.700 MHz
EUGENE CLNC DEL
ID: 68195
Ref: 3517
CLD
121.700 MHz
EUGENE CLNC DEL
ID: 68195
Ref: 3517
CTAF
118.900 MHz
CTAF
ID: 68196
Ref: 3517
CTAF
118.900 MHz
CTAF
ID: 68196
Ref: 3517
GND
121.700 MHz
GND
ID: 68197
Ref: 3517
GND
121.700 MHz
GND
ID: 68197
Ref: 3517
RDO
122.300 MHz
MC MINNVILLE RDO
ID: 68198
Ref: 3517
RDO
122.300 MHz
MC MINNVILLE RDO
ID: 68198
Ref: 3517
TWR
118.900 MHz
EUGENE TWR
ID: 68199
Ref: 3517
TWR
118.900 MHz
EUGENE TWR
ID: 68199
Ref: 3517
UNIC
122.950 MHz
UNICOM
ID: 68200
Ref: 3517
UNIC
122.950 MHz
UNICOM
ID: 68200
Ref: 3517
Navigation Aids
EU
NDB
0.260 MHz
Frakk
Location
Latitude:
44.212799°
Longitude:
-123.220001°
Elevation:
322 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
16.440°
ID: 87857
EU
NDB
0.260 MHz
Frakk
Location
Latitude:
44.212799°
Longitude:
-123.220001°
Elevation:
322 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
16.440°
ID: 87857
EUG
VORTAC
112.900 MHz
Eugene
Location
Latitude:
44.120899°
Longitude:
-123.223000°
Elevation:
364 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
16.423°
DME Information
Channel:
076X
Frequency:
112.900 MHz
ID: 87860
EUG
VORTAC
112.900 MHz
Eugene
Location
Latitude:
44.120899°
Longitude:
-123.223000°
Elevation:
364 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
16.423°
DME Information
Channel:
076X
Frequency:
112.900 MHz
ID: 87860
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