Navigation & Radio at Marquette/Sawyer International Airport
US
MQT
/
KSAW
Radio Frequencies
14
Navigation Aids
3
Radio Frequencies
AWOS
118.375 MHz
AWOS 3
ID: 66052
Ref: 3865
AWOS
118.375 MHz
AWOS 3
ID: 66052
Ref: 3865
CNTR
119.100 MHz
MINNEAPOLIS CNTR
ID: 66053
Ref: 3865
CNTR
119.100 MHz
MINNEAPOLIS CNTR
ID: 66053
Ref: 3865
CTAF
119.975 MHz
CTAF
ID: 66054
Ref: 3865
CTAF
119.975 MHz
CTAF
ID: 66054
Ref: 3865
GND
121.650 MHz
GND
ID: 66055
Ref: 3865
GND
121.650 MHz
GND
ID: 66055
Ref: 3865
RDO
123.600 MHz
GREEN BAY RDO
ID: 66056
Ref: 3865
RDO
123.600 MHz
GREEN BAY RDO
ID: 66056
Ref: 3865
TWR
119.975 MHz
TWR
ID: 66057
Ref: 3865
TWR
119.975 MHz
TWR
ID: 66057
Ref: 3865
UNIC
122.700 MHz
UNICOM
ID: 66058
Ref: 3865
UNIC
122.700 MHz
UNICOM
ID: 66058
Ref: 3865
Navigation Aids
SAW
VOR-DME
117.100 MHz
Sawyer
Location
Latitude:
46.358898°
Longitude:
-87.397202°
Elevation:
1220 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.274°
DME Information
Channel:
118X
Frequency:
117.100 MHz
ID: 93402
SAW
VOR-DME
117.100 MHz
Sawyer
Location
Latitude:
46.358898°
Longitude:
-87.397202°
Elevation:
1220 ft
Additional Info
Usage:
BOTH
Power:
HIGH
Mag Var:
-4.274°
DME Information
Channel:
118X
Frequency:
117.100 MHz
ID: 93402
SO
NDB
0.410 MHz
Suomi
Location
Latitude:
46.262199°
Longitude:
-87.416100°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-4.247°
ID: 93833
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