Navigation & Radio at Los Alamitos Army Air Field
US
/
KSLI
Radio Frequencies
12
Navigation Aids
4
Radio Frequencies
A/D
124.650 MHz
SOCAL APP/DEP
ID: 70684
Ref: 3889
AAS
126.200 MHz
AFLD OPS ADVSY SVC
ID: 70685
Ref: 3889
GND
126.950 MHz
GND
ID: 70686
Ref: 3889
GND
126.950 MHz
GND
ID: 70686
Ref: 3889
OPS
41.500 MHz
AASF OPS
ID: 70687
Ref: 3889
OPS
41.500 MHz
AASF OPS
ID: 70687
Ref: 3889
PMSV
23.980 MHz
PMSV METRO
ID: 70688
Ref: 3889
PMSV
23.980 MHz
PMSV METRO
ID: 70688
Ref: 3889
POST
139.050 MHz
ARCOM OPS
ID: 70689
Ref: 3889
POST
139.050 MHz
ARCOM OPS
ID: 70689
Ref: 3889
TWR
123.850 MHz
TWR
ID: 70690
Ref: 3889
TWR
123.850 MHz
TWR
ID: 70690
Ref: 3889
Navigation Aids
LG
NDB
0.233 MHz
Becca
Location
Latitude:
33.756699°
Longitude:
-118.077003°
Elevation:
12 ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
13.012°
ID: 90303
LG
NDB
0.233 MHz
Becca
Location
Latitude:
33.756699°
Longitude:
-118.077003°
Elevation:
12 ft
Additional Info
Usage:
LO
Power:
LOW
Mag Var:
13.012°
ID: 90303
SLI
VORTAC
115.700 MHz
Seal Beach
Location
Latitude:
33.783298°
Longitude:
-118.055000°
Elevation:
23 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
13.013°
DME Information
Channel:
104X
Frequency:
115.700 MHz
ID: 93725
SLI
VORTAC
115.700 MHz
Seal Beach
Location
Latitude:
33.783298°
Longitude:
-118.055000°
Elevation:
23 ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
13.013°
DME Information
Channel:
104X
Frequency:
115.700 MHz
ID: 93725
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