| Navaid Facility ID: | DYB |
| Official Navaid Facility ID: | DYB |
| Navaid Facility Type: | NDB |
| Navaid Name: | Dorchester County |
| City: | SUMMERVILLE |
| State: | SOUTH CAROLINA |
| FAA Region: | |
| Latitude: | 33-03-41.248N (33.0615) |
| Longitude: | 080-16-37.870W (-80.2772) |
| Lat/Long Survey Accuracy: | |
| Owner: | DORCHESTER CO ARPT AUTH |
| Operator: | DORCHESTER CO ARPT AUTH |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 8.1 W as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | ZJX (JACKSONVILLE) |
| ARTCC Low Altitude ID (Name): | ZJX (JACKSONVILLE) |
| Navaid ID | Navaid Facility Type | Holding Patterns |
|---|---|---|
| DYB | NDB | DORCHESTER COUNTY NDB*SC, Pattern #: 1 |