Navigation & Radio at Billings Logan International Airport
US
BIL
/
KBIL
Radio Frequencies
14
Navigation Aids
4
Radio Frequencies
A/D
119.200 MHz
APP/DEP
ID: 59418
Ref: 3408
A/D
119.200 MHz
APP/DEP
ID: 59418
Ref: 3408
ATIS
126.300 MHz
ATIS
ID: 59419
Ref: 3408
ATIS
126.300 MHz
ATIS
ID: 59419
Ref: 3408
CLD
121.900 MHz
CLNC DEL
ID: 59420
Ref: 3408
CLD
121.900 MHz
CLNC DEL
ID: 59420
Ref: 3408
GND
121.900 MHz
GND
ID: 59421
Ref: 3408
GND
121.900 MHz
GND
ID: 59421
Ref: 3408
RDO
122.550 MHz
GREAT FALLS RDO
ID: 59422
Ref: 3408
RDO
122.550 MHz
GREAT FALLS RDO
ID: 59422
Ref: 3408
TWR
124.200 MHz
TWR
ID: 59423
Ref: 3408
TWR
124.200 MHz
TWR
ID: 59423
Ref: 3408
UNIC
122.950 MHz
UNICOM
ID: 59424
Ref: 3408
UNIC
122.950 MHz
UNICOM
ID: 59424
Ref: 3408
Navigation Aids
BI
NDB
0.251 MHz
Saige
Location
Latitude:
45.852200°
Longitude:
-108.695000°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
12.236°
ID: 86042
BI
NDB
0.251 MHz
Saige
Location
Latitude:
45.852200°
Longitude:
-108.695000°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
12.236°
ID: 86042
BIL
VORTAC
114.500 MHz
Billings
Location
Latitude:
45.808601°
Longitude:
-108.625000°
Elevation:
3808 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
12.207°
DME Information
Channel:
092X
Frequency:
114.500 MHz
ID: 86055
BIL
VORTAC
114.500 MHz
Billings
Location
Latitude:
45.808601°
Longitude:
-108.625000°
Elevation:
3808 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
12.207°
DME Information
Channel:
092X
Frequency:
114.500 MHz
ID: 86055
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