Navigation & Radio at Tribhuvan International Airport
NP
KTM
/
VNKT
Radio Frequencies
10
Navigation Aids
5
Radio Frequencies
APP
120.600 MHz
KATHMANDU APP
ID: 55877
Ref: 26596
APP
120.600 MHz
KATHMANDU APP
ID: 55877
Ref: 26596
ATIS
127.000 MHz
KATHMANDU ATIS
ID: 55878
Ref: 26596
ATIS
127.000 MHz
KATHMANDU ATIS
ID: 55878
Ref: 26596
GND
121.900 MHz
KATHMANDU GND
ID: 55879
Ref: 26596
GND
121.900 MHz
KATHMANDU GND
ID: 55879
Ref: 26596
RDO
292.300 MHz
KATHMANDU RDO
ID: 55880
Ref: 26596
RDO
292.300 MHz
KATHMANDU RDO
ID: 55880
Ref: 26596
TWR
118.100 MHz
KATHMANDU TWR
ID: 55881
Ref: 26596
TWR
118.100 MHz
KATHMANDU TWR
ID: 55881
Ref: 26596
Navigation Aids
KAM
NDB
0.318 MHz
Kathmandu
Location
Latitude:
27.693899°
Longitude:
85.353600°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
0.071°
ID: 89651
KAM
NDB
0.318 MHz
Kathmandu
Location
Latitude:
27.693899°
Longitude:
85.353600°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
0.071°
ID: 89651
KTM
VOR-DME
112.300 MHz
Kathmandu
Location
Latitude:
27.674700°
Longitude:
85.349197°
Elevation:
4255 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
0.069°
DME Information
Channel:
070X
Frequency:
112.300 MHz
ID: 90033
LNC
NDB
0.252 MHz
Nalinchowk
Location
Latitude:
27.650299°
Longitude:
85.464996°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
0.064°
ID: 90439
LNC
NDB
0.252 MHz
Nalinchowk
Location
Latitude:
27.650299°
Longitude:
85.464996°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
0.064°
ID: 90439
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