Navigation & Radio at Morristown Municipal Airport
US
MMU
/
KMMU
Radio Frequencies
14
Navigation Aids
4
Radio Frequencies
APP
127.600 MHz
NEW YORK APP
ID: 59042
Ref: 3698
APP
127.600 MHz
NEW YORK APP
ID: 59042
Ref: 3698
ATIS
124.250 MHz
ATIS
ID: 59043
Ref: 3698
ATIS
124.250 MHz
ATIS
ID: 59043
Ref: 3698
CLD
121.200 MHz
CLNC DEL
ID: 59044
Ref: 3698
CLD
121.200 MHz
CLNC DEL
ID: 59044
Ref: 3698
CTAF
118.100 MHz
CTAF
ID: 59045
Ref: 3698
CTAF
118.100 MHz
CTAF
ID: 59045
Ref: 3698
DEP
119.200 MHz
NEW YORK DEP
ID: 59046
Ref: 3698
DEP
119.200 MHz
NEW YORK DEP
ID: 59046
Ref: 3698
GND
121.700 MHz
GND
ID: 59047
Ref: 3698
GND
121.700 MHz
GND
ID: 59047
Ref: 3698
TWR
118.100 MHz
TWR
ID: 59048
Ref: 3698
TWR
118.100 MHz
TWR
ID: 59048
Ref: 3698
Navigation Aids
CAT
NDB
0.254 MHz
Chatham
Location
Latitude:
40.740898°
Longitude:
-74.429802°
Elevation:
255 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-12.565°
ID: 86592
CAT
NDB
0.254 MHz
Chatham
Location
Latitude:
40.740898°
Longitude:
-74.429802°
Elevation:
255 ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-12.565°
ID: 86592
MM
NDB
0.392 MHz
Moree
Location
Latitude:
40.879902°
Longitude:
-74.334297°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-13.027°
ID: 91088
MM
NDB
0.392 MHz
Moree
Location
Latitude:
40.879902°
Longitude:
-74.334297°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-13.027°
ID: 91088
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