Navigation & Radio at Williams Lake Airport
CA
YWL
/
CYWL
Radio Frequencies
6
Navigation Aids
2
Radio Frequencies
MF
122.300 MHz
Williams Lake Radio, 5nm below 6100ASL excluding area below 2800
ID: 50797
Ref: 1950
PAL
134.000 MHz
Vancouver Control
ID: 50798
Ref: 1950
PAL
381.400 MHz
Vancouver Control
ID: 311335
Ref: 1950
RADIO
122.300 MHz
Williams Lake Radio, (V)
ID: 50801
Ref: 1950
RCO
123.275 MHz
Pacific Radio (FISE)
ID: 50800
Ref: 1950
VDF
122.300 MHz
VHF Direction Finding
ID: 50799
Ref: 1950
Navigation Aids
YWL
VORTAC
113.600 MHz
Williams Lake
Location
Latitude:
52.236900°
Longitude:
-122.169998°
Elevation:
3662 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
19.207°
DME Information
Channel:
083X
Frequency:
113.600 MHz
ID: 95893
YWL
VORTAC
113.600 MHz
Williams Lake
Location
Latitude:
52.236900°
Longitude:
-122.169998°
Elevation:
3662 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
19.207°
DME Information
Channel:
083X
Frequency:
113.600 MHz
ID: 95893
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