Navigation & Radio at Indianapolis International Airport
US
IND
/
KIND
Radio Frequencies
22
Navigation Aids
2
Radio Frequencies
APP
128.175 MHz
APP INITIAL CONTACT
ID: 63578
Ref: 3610
APP
128.175 MHz
APP INITIAL CONTACT
ID: 63578
Ref: 3610
APP (E)
127.150 MHz
APP EAST OF ACTIVE RWY
ID: 509886
Ref: 3610
APP (E)
127.150 MHz
APP EAST OF ACTIVE RWY
ID: 509886
Ref: 3610
APP (W)
124.650 MHz
APP WEST OF ACTIVE RUNWAY
ID: 509887
Ref: 3610
APP (W)
124.650 MHz
APP WEST OF ACTIVE RUNWAY
ID: 509887
Ref: 3610
ATIS
134.250 MHz
ATIS
ID: 63579
Ref: 3610
ATIS
134.250 MHz
ATIS
ID: 63579
Ref: 3610
CLD
128.750 MHz
CLNC DEL
ID: 63580
Ref: 3610
CLD
128.750 MHz
CLNC DEL
ID: 63580
Ref: 3610
DEP (E)
124.950 MHz
DEP EAST
ID: 509581
Ref: 3610
DEP (E)
124.950 MHz
DEP EAST
ID: 509581
Ref: 3610
DEP (W)
119.050 MHz
DEP WEST
ID: 63581
Ref: 3610
DEP (W)
119.050 MHz
DEP WEST
ID: 63581
Ref: 3610
GND
121.800 MHz
GND
ID: 63582
Ref: 3610
GND
121.800 MHz
GND
ID: 63582
Ref: 3610
RDO
122.550 MHz
TERRE HAUTE RDO
ID: 63583
Ref: 3610
RDO
122.550 MHz
TERRE HAUTE RDO
ID: 63583
Ref: 3610
TWR
120.900 MHz
INDY TWR
ID: 63584
Ref: 3610
TWR
120.900 MHz
INDY TWR
ID: 63584
Ref: 3610
UNIC
122.950 MHz
UNICOM
ID: 63585
Ref: 3610
UNIC
122.950 MHz
UNICOM
ID: 63585
Ref: 3610
Navigation Aids
CO
NDB
0.232 MHz
Colfa
Location
Latitude:
39.656898°
Longitude:
-86.185501°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-3.512°
ID: 86935
CO
NDB
0.232 MHz
Colfa
Location
Latitude:
39.656898°
Longitude:
-86.185501°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-3.512°
ID: 86935
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