Navigation & Radio at Cavern City Air Terminal
US
CNM
/
KCNM
Radio Frequencies
4
Navigation Aids
4
Radio Frequencies
ASOS
118.375 MHz
ASOS
ID: 63763
Ref: 3461
CNTR
135.875 MHz
ALBUQUERQUE CNTR
ID: 63764
Ref: 3461
RDO
122.650 MHz
ALBUQUERQUE RDO
ID: 63765
Ref: 3461
UNIC
122.950 MHz
CTAF/UNICOM
ID: 63766
Ref: 3461
Navigation Aids
CNM
VORTAC
116.300 MHz
Carlsbad
Location
Latitude:
32.256599°
Longitude:
-104.225998°
Elevation:
3250 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
8.313°
DME Information
Channel:
110X
Frequency:
116.300 MHz
ID: 86919
CNM
VORTAC
116.300 MHz
Carlsbad
Location
Latitude:
32.256599°
Longitude:
-104.225998°
Elevation:
3250 ft
Additional Info
Usage:
LO
Power:
MEDIUM
Mag Var:
8.313°
DME Information
Channel:
110X
Frequency:
116.300 MHz
ID: 86919
CV
NDB
0.402 MHz
Carlz
Location
Latitude:
32.266800°
Longitude:
-104.338997°
Elevation:
3840 ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
8.343°
ID: 87133
CV
NDB
0.402 MHz
Carlz
Location
Latitude:
32.266800°
Longitude:
-104.338997°
Elevation:
3840 ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
8.343°
ID: 87133
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