Navigation & Radio at Bellingham International Airport
US
BLI
/
KBLI
Radio Frequencies
13
Navigation Aids
4
Radio Frequencies
A/D
132.700 MHz
VICTORIA APP/DEP
ID: 68790
Ref: 3416
A/D
132.700 MHz
VICTORIA APP/DEP
ID: 68790
Ref: 3416
ATIS
134.450 MHz
ATIS
ID: 68791
Ref: 3416
ATIS
134.450 MHz
ATIS
ID: 68791
Ref: 3416
CTAF
124.900 MHz
CTAF
ID: 68792
Ref: 3416
CTAF
124.900 MHz
CTAF
ID: 68792
Ref: 3416
GND
127.400 MHz
GND
ID: 68793
Ref: 3416
GND
127.400 MHz
GND
ID: 68793
Ref: 3416
RDO
122.150 MHz
SEATTLE RDO
ID: 68794
Ref: 3416
RDO
122.150 MHz
SEATTLE RDO
ID: 68794
Ref: 3416
TWR
124.900 MHz
TWR
ID: 68795
Ref: 3416
TWR
124.900 MHz
TWR
ID: 68795
Ref: 3416
UNIC
122.950 MHz
UNICOM
ID: 68796
Ref: 3416
Navigation Aids
BL
NDB
0.338 MHz
Benza
Location
Latitude:
48.899101°
Longitude:
-122.535004°
Elevation:
44 ft
Additional Info
Usage:
TERMINAL
Power:
MEDIUM
Mag Var:
18.100°
ID: 86139
BL
NDB
0.338 MHz
Benza
Location
Latitude:
48.899101°
Longitude:
-122.535004°
Elevation:
44 ft
Additional Info
Usage:
TERMINAL
Power:
MEDIUM
Mag Var:
18.100°
ID: 86139
HUH
VORTAC
113.000 MHz
Whatcom
Location
Latitude:
48.945301°
Longitude:
-122.579002°
Elevation:
84 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
18.115°
DME Information
Channel:
077X
Frequency:
113.000 MHz
ID: 89042
HUH
VORTAC
113.000 MHz
Whatcom
Location
Latitude:
48.945301°
Longitude:
-122.579002°
Elevation:
84 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
18.115°
DME Information
Channel:
077X
Frequency:
113.000 MHz
ID: 89042
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