Navigation & Radio at Muir Army Air Field (Fort Indiantown Gap) Airport
US
MUI
/
KMUI
Radio Frequencies
12
Navigation Aids
2
Radio Frequencies
A/D
118.250 MHz
HARRISBURG APP/DEP
ID: 69238
Ref: 3714
A/D
118.250 MHz
HARRISBURG APP/DEP
ID: 69238
Ref: 3714
CTAF
126.200 MHz
CTAF
ID: 69239
Ref: 3714
CTAF
126.200 MHz
CTAF
ID: 69239
Ref: 3714
GND
121.625 MHz
GND
ID: 69240
Ref: 3714
GND
121.625 MHz
GND
ID: 69240
Ref: 3714
MISC
40.900 MHz
FLT FLW
ID: 69241
Ref: 3714
MISC
40.900 MHz
FLT FLW
ID: 69241
Ref: 3714
OPS
49.950 MHz
ARNG OPS
ID: 69242
Ref: 3714
OPS
49.950 MHz
ARNG OPS
ID: 69242
Ref: 3714
TWR
126.200 MHz
TWR
ID: 69243
Ref: 3714
TWR
126.200 MHz
TWR
ID: 69243
Ref: 3714
Navigation Aids
BZJ
NDB
0.328 MHz
Bellgrove
Location
Latitude:
40.435902°
Longitude:
-76.553001°
Elevation:
518 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-11.285°
ID: 86521
BZJ
NDB
0.328 MHz
Bellgrove
Location
Latitude:
40.435902°
Longitude:
-76.553001°
Elevation:
518 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-11.285°
ID: 86521
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