Navigation & Radio at Sheik Isa Air Base
BH
/
OBBS
Radio Frequencies
10
Navigation Aids
4
Radio Frequencies
ACP
32.137 MHz
COMD POST
ID: 49281
Ref: 5080
ACP
32.137 MHz
COMD POST
ID: 49281
Ref: 5080
APP
124.950 MHz
APP
ID: 49282
Ref: 5080
APP
124.950 MHz
APP
ID: 49282
Ref: 5080
GND
125.950 MHz
GND
ID: 49283
Ref: 5080
GND
125.950 MHz
GND
ID: 49283
Ref: 5080
PTD
37.220 MHz
PTD
ID: 49284
Ref: 5080
PTD
37.220 MHz
PTD
ID: 49284
Ref: 5080
TWR
125.450 MHz
TWR
ID: 49285
Ref: 5080
TWR
125.450 MHz
TWR
ID: 49285
Ref: 5080
Navigation Aids
SI
NDB
0.343 MHz
Shaikh Isa
Location
Latitude:
25.894300°
Longitude:
50.603699°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
2.087°
ID: 93600
SI
NDB
0.343 MHz
Shaikh Isa
Location
Latitude:
25.894300°
Longitude:
50.603699°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
LOW
Mag Var:
2.087°
ID: 93600
SIA
VORTAC
117.600 MHz
Shaikh Isa
Location
Latitude:
25.921801°
Longitude:
50.590500°
Elevation:
136 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
2.091°
DME Information
Channel:
123X
Frequency:
117.600 MHz
ID: 93607
SIA
VORTAC
117.600 MHz
Shaikh Isa
Location
Latitude:
25.921801°
Longitude:
50.590500°
Elevation:
136 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
2.091°
DME Information
Channel:
123X
Frequency:
117.600 MHz
ID: 93607
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