Navigation & Radio at Riga International Airport
LV
RIX
/
EVRA
Radio Frequencies
10
Navigation Aids
2
Radio Frequencies
APP
129.925 MHz
APP
ID: 55158
Ref: 2758
APP
129.925 MHz
APP
ID: 55158
Ref: 2758
ATIS
121.200 MHz
ATIS
ID: 55159
Ref: 2758
ATIS
121.200 MHz
ATIS
ID: 55159
Ref: 2758
GND
118.800 MHz
Riga Ground
ID: 299837
Ref: 2758
GND
118.800 MHz
Riga Ground
ID: 299837
Ref: 2758
MISC
131.600 MHz
Riga Apron
ID: 55160
Ref: 2758
MISC
131.600 MHz
Riga Apron
ID: 55160
Ref: 2758
TWR
118.100 MHz
TWR
ID: 55161
Ref: 2758
TWR
118.100 MHz
TWR
ID: 55161
Ref: 2758
Navigation Aids
RIA
VOR-DME
112.050 MHz
Riga
Location
Latitude:
56.920898°
Longitude:
23.965200°
Elevation:
100 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
6.000°
DME Information
Channel:
057Y
Frequency:
112.050 MHz
ID: 93087
RIX
VOR-DME
113.700 MHz
Riga
Location
Latitude:
56.897400°
Longitude:
23.966999°
Elevation:
60 ft
Additional Info
Usage:
TERMINAL
Power:
HIGH
Mag Var:
5.597°
DME Information
Channel:
084X
Frequency:
113.700 MHz
ID: 93107
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