Navigation & Radio at Francisco de Sá Carneiro Airport
PT
OPO
/
LPPR
Radio Frequencies
4
Navigation Aids
6
Radio Frequencies
APP
121.105 MHz
Porto Approach
ID: 56286
Ref: 4459
ATIS
124.305 MHz
ATIS
ID: 56287
Ref: 4459
CLR DLVR
118.930 MHz
Porto Delivery
ID: 331395
Ref: 4459
TWR
118.005 MHz
Porto Tower
ID: 56288
Ref: 4459
Navigation Aids
PG
NDB
0.367 MHz
Porto
Location
Latitude:
41.078098°
Longitude:
-8.636670°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-3.594°
ID: 92394
PG
NDB
0.367 MHz
Porto
Location
Latitude:
41.078098°
Longitude:
-8.636670°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-3.594°
ID: 92394
POR
NDB
0.327 MHz
Porto
Location
Latitude:
41.348099°
Longitude:
-8.708060°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.025°
ID: 92613
POR
NDB
0.327 MHz
Porto
Location
Latitude:
41.348099°
Longitude:
-8.708060°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.025°
ID: 92613
PRT
VOR-DME
114.100 MHz
Porto
Location
Latitude:
41.273102°
Longitude:
-8.687780°
Elevation:
182 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.016°
DME Information
Channel:
088X
Frequency:
114.100 MHz
ID: 92700
PRT
VOR-DME
114.100 MHz
Porto
Location
Latitude:
41.273102°
Longitude:
-8.687780°
Elevation:
182 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.016°
DME Information
Channel:
088X
Frequency:
114.100 MHz
ID: 92700
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