Navigation & Radio at Grissom Air Reserve Base
US
GUS
/
KGUS
Radio Frequencies
18
Navigation Aids
2
Radio Frequencies
A/D
121.050 MHz
A/D INITIAL CONTACT
ID: 71280
Ref: 3573
A/D
123.850 MHz
GRISSOM A/D WEST
ID: 509906
Ref: 3573
A/D
121.050 MHz
A/D INITIAL CONTACT
ID: 71280
Ref: 3573
A/D
135.350 MHz
GRISSOM A/D SECONDARY
ID: 509907
Ref: 3573
ATIS
108.450 MHz
ATIS
ID: 71281
Ref: 3573
ATIS
108.450 MHz
ATIS
ID: 71281
Ref: 3573
CLD
128.425 MHz
CLNC DEL
ID: 71282
Ref: 3573
CLD
128.425 MHz
CLNC DEL
ID: 71282
Ref: 3573
CTR
121.050 MHz
CHICAGO CTR
ID: 509908
Ref: 3573
CTR
121.050 MHz
CHICAGO CTR
ID: 509908
Ref: 3573
GND
128.425 MHz
GND
ID: 71284
Ref: 3573
GND
128.425 MHz
GND
ID: 71284
Ref: 3573
PMSV
34.460 MHz
PMSV METRO
ID: 71285
Ref: 3573
PMSV
34.460 MHz
PMSV METRO
ID: 71285
Ref: 3573
PTD
372.200 MHz
PTD
ID: 71286
Ref: 3573
PTD
372.200 MHz
PTD
ID: 71286
Ref: 3573
TWR
133.700 MHz
TWR
ID: 71287
Ref: 3573
TWR
133.700 MHz
TWR
ID: 71287
Ref: 3573
Navigation Aids
GUS
VORTAC
108.450 MHz
Grissom
Location
Latitude:
40.644901°
Longitude:
-86.151703°
Elevation:
810 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-4.057°
DME Information
Channel:
021Y
Frequency:
108.450 MHz
ID: 88634
GUS
VORTAC
108.450 MHz
Grissom
Location
Latitude:
40.644901°
Longitude:
-86.151703°
Elevation:
810 ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
-4.057°
DME Information
Channel:
021Y
Frequency:
108.450 MHz
ID: 88634
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