Navigation & Radio at Tainan International Airport / Tainan Air Base
TW
TNN
/
RCNN
Radio Frequencies
6
Navigation Aids
5
Radio Frequencies
APP
121.100 MHz
KAOHSIUNG APP
ID: 58041
Ref: 5522
APP
121.100 MHz
KAOHSIUNG APP
ID: 58041
Ref: 5522
GND
121.600 MHz
GND
ID: 58042
Ref: 5522
GND
121.600 MHz
GND
ID: 58042
Ref: 5522
TWR
118.400 MHz
TWR
ID: 58043
Ref: 5522
TWR
118.400 MHz
TWR
ID: 58043
Ref: 5522
Navigation Aids
NN
NDB
0.375 MHz
Shikang
Location
Latitude:
23.124701°
Longitude:
120.202003°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-3.073°
ID: 91645
NN
NDB
0.375 MHz
Shikang
Location
Latitude:
23.124701°
Longitude:
120.202003°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
-3.073°
ID: 91645
TNN
VORTAC
113.300 MHz
Shikang
Location
Latitude:
23.135599°
Longitude:
120.206001°
Elevation:
42 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-3.075°
DME Information
Channel:
080X
Frequency:
113.300 MHz
ID: 94480
TWS
TACAN
115.400 MHz
Tainan
Location
Latitude:
22.949900°
Longitude:
120.205002°
Elevation:
63 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-3.050°
DME Information
Channel:
101X
Frequency:
115.400 MHz
ID: 94716
TWS
TACAN
115.400 MHz
Tainan
Location
Latitude:
22.949900°
Longitude:
120.205002°
Elevation:
63 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-3.050°
DME Information
Channel:
101X
Frequency:
115.400 MHz
ID: 94716
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