Navigation & Radio at Sam Ratulangi Airport
ID
MDC
/
WAMM
Radio Frequencies
8
Navigation Aids
6
Radio Frequencies
APP
119.000 MHz
MANADO APP
ID: 53627
Ref: 26770
APP
119.000 MHz
MANADO APP
ID: 53627
Ref: 26770
ATIS
126.400 MHz
ATIS
ID: 53628
Ref: 26770
ATIS
126.400 MHz
ATIS
ID: 53628
Ref: 26770
INFO
891.800 MHz
MANADO INFO
ID: 53629
Ref: 26770
INFO
891.800 MHz
MANADO INFO
ID: 53629
Ref: 26770
TWR
118.100 MHz
RATULANGI TWR
ID: 53630
Ref: 26770
TWR
118.100 MHz
RATULANGI TWR
ID: 53630
Ref: 26770
Navigation Aids
MD
NDB
0.255 MHz
Manado
Location
Latitude:
1.480830°
Longitude:
124.838997°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
1.063°
ID: 90820
MNO
VOR-DME
114.200 MHz
Manado
Location
Latitude:
1.555180°
Longitude:
124.928001°
Elevation:
270 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
1.059°
DME Information
Channel:
089X
Frequency:
114.200 MHz
ID: 91129
MNO
VOR-DME
114.200 MHz
Manado
Location
Latitude:
1.555180°
Longitude:
124.928001°
Elevation:
270 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
1.059°
DME Information
Channel:
089X
Frequency:
114.200 MHz
ID: 91129
MWB
VOR-DME
114.800 MHz
Manado
Location
Latitude:
1.323250°
Longitude:
124.955002°
Elevation:
2373 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
1.081°
DME Information
Channel:
095X
Frequency:
114.800 MHz
ID: 91382
MWB
VOR-DME
114.800 MHz
Manado
Location
Latitude:
1.323250°
Longitude:
124.955002°
Elevation:
2373 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
1.081°
DME Information
Channel:
095X
Frequency:
114.800 MHz
ID: 91382
PN
NDB
0.290 MHz
Manado
Location
Latitude:
1.493620°
Longitude:
124.908997°
Elevation:
N/A ft
Additional Info
Usage:
BOTH
Power:
MEDIUM
Mag Var:
1.064°
ID: 92554
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