Navigation & Radio at Hilo International Airport
US
ITO
/
PHTO
Radio Frequencies
12
Navigation Aids
4
Radio Frequencies
A/D
119.700 MHz
APP/DEP
ID: 58664
Ref: 5457
A/D
119.700 MHz
APP/DEP
ID: 58664
Ref: 5457
ATIS
126.400 MHz
ATIS
ID: 58665
Ref: 5457
ATIS
126.400 MHz
ATIS
ID: 58665
Ref: 5457
CTAF
118.100 MHz
CTAF
ID: 58666
Ref: 5457
CTAF
118.100 MHz
CTAF
ID: 58666
Ref: 5457
GND
121.900 MHz
GND
ID: 58667
Ref: 5457
GND
121.900 MHz
GND
ID: 58667
Ref: 5457
RDO
122.600 MHz
HONOLULU RDO
ID: 58668
Ref: 5457
RDO
122.600 MHz
HONOLULU RDO
ID: 58668
Ref: 5457
TWR
118.100 MHz
TWR
ID: 58669
Ref: 5457
TWR
118.100 MHz
TWR
ID: 58669
Ref: 5457
Navigation Aids
ITO
VORTAC
116.900 MHz
Hilo
Location
Latitude:
19.721300°
Longitude:
-155.011002°
Elevation:
23 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
9.549°
DME Information
Channel:
116X
Frequency:
116.900 MHz
ID: 89366
ITO
VORTAC
116.900 MHz
Hilo
Location
Latitude:
19.721300°
Longitude:
-155.011002°
Elevation:
23 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
9.549°
DME Information
Channel:
116X
Frequency:
116.900 MHz
ID: 89366
POA
NDB
0.332 MHz
Pahoa
Location
Latitude:
19.543301°
Longitude:
-154.975006°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
9.535°
ID: 92596
POA
NDB
0.332 MHz
Pahoa
Location
Latitude:
19.543301°
Longitude:
-154.975006°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
9.535°
ID: 92596
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