| Navaid Facility ID: | DUC |
| Official Navaid Facility ID: | DUC |
| Navaid Facility Type: | DME |
| Navaid Name: | Duncan |
| City: | DUNCAN |
| State: | OKLAHOMA |
| FAA Region: | |
| Latitude: | 34-23-03.687N (34.3844) |
| Longitude: | 097-55-00.992W (-97.9169) |
| Lat/Long Survey Accuracy: | NOS |
| Owner: | FEDERAL AVIATION ADMIN |
| Operator: | FEDERAL AVIATION ADMIN |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | L-DME |
| Hours of Operation: | 24 |
| Magnetic Variance: | 3.4 E as of 2/17/2025 |
| ARTCC High Altitude ID (Name): | ZFW (FORT WORTH) |
| ARTCC Low Altitude ID (Name): | ZFW (FORT WORTH) |
| Navaid ID | Navaid Facility Type | Remarks |
|---|---|---|
| DUC | DME | DME UNUSABLE 030-044 BYD 10 NM BLO 9000 FT; 030-044 BYD 35 NM ALL ALTS. |
| DUC | DME | DME UNUSABLE 044-076 BYD 10 NM ALL ALTS; 076-086 BYD 10 NM BLO 9000 FT; 086-188 BYD 10 NM ALL ALTS. |
| DUC | DME | DME UNUSABLE 188-204 BYD 10 NM BLO 9000 FT; 188-204 BYD 32 NM ALL ALTS. |
| DUC | DME | DME UNUSABLE 204-316 BYD 10 NM ALL ALTS; 316-336 BYD 10 NM BLO 7600 FT. |
| DUC | DME | DME UNUSABLE 316-336 BYD 25 NM ALL ALTS; 336-030 BYD 10 NM ALL ALTS. |