Navigation & Radio at Canoas Air Force Base
BR
QNS
/
SBCO
Radio Frequencies
5
Navigation Aids
4
Radio Frequencies
APP
119.000 MHz
PALEGRE APP
ID: 49670
Ref: 5888
ATIS
127.850 MHz
ATIS
ID: 49671
Ref: 5888
GND
121.700 MHz
GND
ID: 49672
Ref: 5888
OPS
122.500 MHz
OPS
ID: 49673
Ref: 5888
TWR
118.500 MHz
TWR
ID: 49674
Ref: 5888
Navigation Aids
COA
VOR-DME
113.600 MHz
Canoas
Location
Latitude:
-29.950300°
Longitude:
-51.145802°
Elevation:
26 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-15.097°
DME Information
Channel:
083X
Frequency:
113.600 MHz
ID: 86939
COA
VOR-DME
113.600 MHz
Canoas
Location
Latitude:
-29.950300°
Longitude:
-51.145802°
Elevation:
26 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-15.097°
DME Information
Channel:
083X
Frequency:
113.600 MHz
ID: 86939
OAS
NDB
0.250 MHz
Canoas
Location
Latitude:
-29.944700°
Longitude:
-51.137299°
Elevation:
26 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-15.102°
ID: 91843
OAS
NDB
0.250 MHz
Canoas
Location
Latitude:
-29.944700°
Longitude:
-51.137299°
Elevation:
26 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-15.102°
ID: 91843
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