Navigation & Radio at Santos Dumont Airport
BR
SDU
/
SBRJ
Radio Frequencies
7
Navigation Aids
2
Radio Frequencies
APP
119.350 MHz
RIO CON
ID: 49775
Ref: 5967
ATIS
132.650 MHz
ATIS
ID: 49776
Ref: 5967
CLD
121.050 MHz
TFC
ID: 49777
Ref: 5967
GND
121.700 MHz
GND
ID: 49778
Ref: 5967
GND
121.700 MHz
GND
ID: 49778
Ref: 5967
TWR
118.700 MHz
RIO TWR
ID: 49779
Ref: 5967
TWR
118.700 MHz
RIO TWR
ID: 49779
Ref: 5967
Navigation Aids
PP
NDB
0.415 MHz
Paiol
Location
Latitude:
-22.870199°
Longitude:
-43.165199°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
-21.372°
ID: 92628
PP
NDB
0.415 MHz
Paiol
Location
Latitude:
-22.870199°
Longitude:
-43.165199°
Elevation:
N/A ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
-21.372°
ID: 92628
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