| Navaid Facility ID: | ADU |
| Official Navaid Facility ID: | ADU |
| Navaid Facility Type: | NDB |
| Navaid Name: | Audubon |
| City: | AUDUBON |
| State: | IOWA |
| FAA Region: | |
| Latitude: | 41-41-19.405N (41.6887) |
| Longitude: | 094-54-35.407W (-94.9098) |
| Lat/Long Survey Accuracy: | 1 second or better |
| Owner: | CITY OF AUDUBON |
| Operator: | CITY OF AUDUBON |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | MHW |
| Hours of Operation: | 24 |
| Magnetic Variance: | 1.3 E as of 10/17/2024 |
| ARTCC High Altitude ID (Name): | ZMP (MINNEAPOLIS) |
| ARTCC Low Altitude ID (Name): | ZMP (MINNEAPOLIS) |
| Navaid ID | Navaid Facility Type | Remarks |
|---|---|---|
| ADU | NDB | NDB LOCATED 3540' FROM APCH END RWY 32 ON EXTENDED CENTERLINE. |
| ADU | NDB | NDB UNUSBL BYD 12 NM. |