NDB navaids
Non-Directional Beacons — low/medium-frequency beacons flown with an ADF. 6,610 on record.
| Ident | Name | Country |
|---|---|---|
| HN | Suybe | 🇺🇸 US |
| MK | Suzze | 🇺🇸 US |
| OY | Sveg | 🇸🇪 SE |
| SL | Svinafell | 🇮🇸 IS |
| SW | Sw | 🇹🇼 TW |
| SW | Swampy | 🇳🇿 NZ |
| SWH | Swan Hill | 🇦🇺 AU |
| 4O | Swan Hills | 🇨🇦 CA |
| N4 | Swan River | 🇨🇦 CA |
| SWN | Swansea | 🇬🇧 GB |
| SWU | Sweden | 🇺🇸 US |
| SWW | Sweetwater | 🇺🇸 US |
| SDM | Sydenham | 🇦🇺 AU |
| QY | Sydney | 🇨🇦 CA |
| SR | Syktyvkar | 🇷🇺 RU |
| PW | Syktyvkar | 🇷🇺 RU |
| SCD | Sylacauga | 🇺🇸 US |
| SY | Sylhet | 🇧🇩 BD |
| SLT | Sylt | 🇩🇪 DE |
| JYL | Sylvania | 🇺🇸 US |
| CV | Syrdarya | 🇺🇿 UZ |
| SYR | Syros | 🇬🇷 GR |
| OL | Szczecin | 🇵🇱 PL |
| DW | Szczytno | 🇵🇱 PL |
| ZG | Szeged | 🇭🇺 HU |
| G | Szeged | 🇭🇺 HU |
| VS | Szentkiralyszabadja | 🇭🇺 HU |
| V | Szentkiralyszabadja | 🇭🇺 HU |
| TBA | Taba | 🇪🇬 EG |
| TK | Tabarka 7 Novembre | 🇹🇳 TN |
| TBT | Tabatinga | 🇧🇷 BR |
| BF | Tabey | 🇺🇸 US |
| TBG | Taboga Island | 🇵🇦 PA |
| TB | Tabora | 🇹🇿 TZ |
| TBU | Tabou | 🇨🇮 CI |
| TBZ | Tabriz | 🇮🇷 IR |
| O | Tacheng | 🇨🇳 CN |
| TL | Tachileik | 🇲🇲 MM |
| TH | Tachtamygda | 🇷🇺 RU |
| TBO | Tacuarembo | 🇺🇾 UY |
| Q1 | Tadoule Lake | 🇨🇦 CA |
| IA | Taffs | 🇺🇸 US |
| FA | Tahiti Faaa | 🇵🇫 PF |
| TQH | Tahlequah | 🇺🇸 US |
| TA | Tahoua | 🇳🇪 NE |
| TA | Tahuna | 🇮🇩 ID |
| TC | Taichung | 🇹🇼 TW |
| TBD | Tailem Bend (DECOMMISSIONED) | 🇦🇺 AU |
| ZN | Taitung | 🇹🇼 TW |
| TZ | Taiz | 🇾🇪 YE |