NDB navaids
Non-Directional Beacons — low/medium-frequency beacons flown with an ADF. 6,610 on record.
| Ident | Name | Country |
|---|---|---|
| BG | Smite | 🇺🇸 US |
| SAK | Smith Lake | 🇺🇸 US |
| SMI | Smithton | 🇦🇺 AU |
| SLW | Smithville | 🇺🇸 US |
| SM | Smolenskaya | 🇷🇺 RU |
| DYO | Smuto | 🇺🇸 US |
| ND | Smyshlyayevka | 🇷🇺 RU |
| SN | Sn | 🇹🇼 TW |
| SU | Snoop | 🇺🇸 US |
| CK | Snuff | 🇺🇸 US |
| SDR | Snyder | 🇺🇸 US |
| TW | Soavinandriana | 🇲🇬 MG |
| AD | Sochi | 🇷🇺 RU |
| SO | Sochi | 🇷🇺 RU |
| SCT | Socotra | 🇾🇪 YE |
| SF | Sofia | 🇧🇬 BG |
| F | Sofia | 🇧🇬 BG |
| S | Sofia | 🇧🇬 BG |
| SOF | Sofia | 🇧🇬 BG |
| MC | Sofke | 🇺🇸 US |
| SOG | Sogamoso | 🇨🇴 CO |
| IG | Soja | 🇧🇷 BR |
| SK | Sokcho | 🇰🇷 KR |
| SOK | Soknen | 🇳🇴 NO |
| SK | Sokode | 🇹🇬 TG |
| PW | Sokol | 🇷🇺 RU |
| ZO | Sola | 🇳🇴 NO |
| SLB | Solberg | 🇳🇴 NO |
| SZA | Solenzara | 🇫🇷 FR |
| SL | Solera | 🇿🇼 ZW |
| SO | Solo | 🇮🇩 ID |
| SL | Solodniki | 🇷🇺 RU |
| OLG | Solon Springs | 🇺🇸 US |
| SW | Solwezi | 🇿🇲 ZM |
| FYE | Somerville | 🇺🇸 US |
| SF | Sondre Stromfjord | 🇬🇱 GL |
| SG | Songarh | 🇮🇳 IN |
| SG | Songea | 🇹🇿 TZ |
| SK | Songkhla | 🇹🇭 TH |
| SO | Songo | 🇲🇿 MZ |
| SOA | Sonora | 🇺🇸 US |
| SA | Soroako | 🇮🇩 ID |
| SCB | Sorocaba | 🇧🇷 BR |
| ZO | Sorong | 🇮🇩 ID |
| SO | Soroti | 🇺🇬 UG |
| SA | Sorreisa | 🇳🇴 NO |
| SOR | Sorrento | 🇮🇹 IT |
| WU | Sosnovka | 🇷🇺 RU |
| RP | Sosnovskoye | 🇷🇺 RU |
| SUN | Sounion | 🇬🇷 GR |