Navigation & Radio at South Bend Regional Airport

US

SBN / KSBN
Radio Frequencies
21
Navigation Aids
2

Radio Frequencies

A/D 118.550 MHz
SOUTH BEND APP/DEP : 270-99° INITIAL CONTACT
ID: 65407 Ref: 3868
A/D 118.550 MHz
SOUTH BEND APP/DEP : 270-99° INITIAL CONTACT
ID: 65407 Ref: 3868
A/D 124.100 MHz
SOUTH BEND APP/DEP : 100-269° SECONDARY
ID: 509939 Ref: 3868
A/D 124.100 MHz
SOUTH BEND APP/DEP : 100-269° SECONDARY
ID: 509939 Ref: 3868
A/D 132.050 MHz
SOUTH BEND APP/DEP : 100-269°
ID: 509938 Ref: 3868
A/D 132.050 MHz
SOUTH BEND APP/DEP : 100-269°
ID: 509938 Ref: 3868
ATIS 120.675 MHz
ATIS
ID: 65408 Ref: 3868
ATIS 120.675 MHz
ATIS
ID: 65408 Ref: 3868
CLD 121.900 MHz
CLNC DEL
ID: 65409 Ref: 3868
CTAF 135.675 MHz
CTAF
ID: 65410 Ref: 3868
CTAF 135.675 MHz
CTAF
ID: 65410 Ref: 3868
CTR 118.550 MHz
CHICAGO CTR
ID: 509940 Ref: 3868
CTR 118.550 MHz
CHICAGO CTR
ID: 509940 Ref: 3868
GND 121.700 MHz
GND
ID: 65411 Ref: 3868
GND 121.700 MHz
GND
ID: 65411 Ref: 3868
RDO 122.600 MHz
TERRE HAUTE RDO
ID: 65412 Ref: 3868
RDO 122.600 MHz
TERRE HAUTE RDO
ID: 65412 Ref: 3868
TWR 135.675 MHz
TWR
ID: 65413 Ref: 3868
TWR 135.675 MHz
TWR
ID: 65413 Ref: 3868
UNIC 122.950 MHz
UNICOM
ID: 65414 Ref: 3868
UNIC 122.950 MHz
UNICOM
ID: 65414 Ref: 3868

Navigation Aids

SB NDB
0.341 MHz

Misha

Location

Latitude: 41.705700°
Longitude: -86.219002°
Elevation: 760 ft

Additional Info

Usage: TERMINAL
Power: LOW
Mag Var: -4.170°
ID: 93418
SB NDB
0.341 MHz

Misha

Location

Latitude: 41.705700°
Longitude: -86.219002°
Elevation: 760 ft

Additional Info

Usage: TERMINAL
Power: LOW
Mag Var: -4.170°
ID: 93418

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
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