Navigation & Radio at Worcester Regional Airport
US
ORH
/
KORH
Radio Frequencies
13
Navigation Aids
4
Radio Frequencies
A/D
119.000 MHz
BRADLEY APP/DEP
ID: 63357
Ref: 3756
A/D
119.000 MHz
BRADLEY APP/DEP
ID: 63357
Ref: 3756
ATIS
126.550 MHz
ATIS
ID: 63358
Ref: 3756
ATIS
126.550 MHz
ATIS
ID: 63358
Ref: 3756
CLD
128.650 MHz
CLNC DEL
ID: 63359
Ref: 3756
CLD
128.650 MHz
CLNC DEL
ID: 63359
Ref: 3756
CTAF
120.500 MHz
CTAF
ID: 63360
Ref: 3756
GND
123.850 MHz
GND
ID: 63361
Ref: 3756
GND
123.850 MHz
GND
ID: 63361
Ref: 3756
RDO
122.200 MHz
BRIDGEPORT RDO
ID: 63362
Ref: 3756
TWR
120.500 MHz
TWR
ID: 63363
Ref: 3756
TWR
120.500 MHz
TWR
ID: 63363
Ref: 3756
UNIC
122.950 MHz
UNICOM
ID: 63364
Ref: 3756
Navigation Aids
EK
NDB
0.417 MHz
Gozzr
Location
Latitude:
42.259300°
Longitude:
-71.736099°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-14.594°
ID: 87699
EK
NDB
0.417 MHz
Gozzr
Location
Latitude:
42.259300°
Longitude:
-71.736099°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-14.594°
ID: 87699
RS
NDB
0.279 MHz
Dunca
Location
Latitude:
42.274399°
Longitude:
-72.019897°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-14.508°
ID: 93247
RS
NDB
0.279 MHz
Dunca
Location
Latitude:
42.274399°
Longitude:
-72.019897°
Elevation:
N/A ft
Additional Info
Usage:
TERMINAL
Power:
LOW
Mag Var:
-14.508°
ID: 93247
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