Navigation & Radio at Amílcar Cabral International Airport
CV
SID
/
GVAC
Radio Frequencies
8
Navigation Aids
3
Radio Frequencies
A/G
345.200 MHz
A/G
ID: 51681
Ref: 3150
A/G
345.200 MHz
A/G
ID: 51681
Ref: 3150
APP
126.400 MHz
SAL APP - (V)
ID: 51682
Ref: 3150
APP
126.400 MHz
SAL APP - (V)
ID: 51682
Ref: 3150
AWOS
127.600 MHz
ID: 323047
Ref: 3150
AWOS
127.600 MHz
ID: 323047
Ref: 3150
TWR
119.700 MHz
TWR
ID: 51683
Ref: 3150
TWR
119.700 MHz
TWR
ID: 51683
Ref: 3150
Navigation Aids
CVS
VOR-DME
115.300 MHz
Sal
Location
Latitude:
16.736799°
Longitude:
-22.951000°
Elevation:
176 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-10.454°
DME Information
Channel:
100X
Frequency:
115.300 MHz
ID: 87153
CVS
VOR-DME
115.300 MHz
Sal
Location
Latitude:
16.736799°
Longitude:
-22.951000°
Elevation:
176 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-10.454°
DME Information
Channel:
100X
Frequency:
115.300 MHz
ID: 87153
SAL
NDB
0.274 MHz
Sal
Location
Latitude:
16.701799°
Longitude:
-22.948700°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-10.458°
ID: 93370
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