| Navaid Facility ID: | HB |
| Official Navaid Facility ID: | HB |
| Navaid Facility Type: | NDB |
| Navaid Name: | Alamm |
| City: | BURLINGTON |
| State: | NORTH CAROLINA |
| FAA Region: | |
| Latitude: | 35-58-41.227N (35.9781) |
| Longitude: | 079-35-05.427W (-79.5848) |
| Lat/Long Survey Accuracy: | |
| Owner: | FEDERAL AVIATION ADMIN. |
| Operator: | FEDERAL AVIATION ADMIN. |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW/LOM |
| Hours of Operation: | 24 |
| Magnetic Variance: | 8.9 W as of 9/30/2025 |
| ARTCC High Altitude ID (Name): | ZDC (WASHINGTON) |
| ARTCC Low Altitude ID (Name): | ZDC (WASHINGTON) |
| Navaid ID | Navaid Facility Type | Magnetic Variance | Airspace Fixes |
|---|---|---|---|
| HB | NDB | 8.8 W | KAKLE NC - K7 |
| Navaid ID | Navaid Facility Type | Holding Patterns |
|---|---|---|
| HB | NDB | ALAMM NDB*NC, Pattern #: 1 |