Longwave Utility Stations
From HFUnderground
Everything related to long wave utility stations goes here.
- DGPS Differential GPS stations. Located in the LW & MW band (283.5 kHz - 325 kHz) along with the NDBs.
- The Longwave Club of America specializes in longwave applications including DGPS, Part 15, NDBs and more
Amateur Radio and Experimenters
There are a few ranges where amateur radio and experimenters holds a secondary allocation and its use is strictly limited.
- 135.7 to 137.8 Khz (amateur radio)
- 160 to 190 Khz (LOWFER experimenter's band)
- 472 to 479 Khz (amateur radio)
VLF stations
| Freq (kHz) | Callsign | Location | Operation Notes |
|---|---|---|---|
| 11.905 kHz | - | Russia | Alpha-Navigation |
| 12.649 kHz | - | Russia | Alpha-Navigation |
| 14.881 kHz | - | Russia | Alpha-Navigation |
| 15.1 | HWU | Rosnay, France | 400 kW |
| 16.4 | JXN | Gildeskål Norway | |
| 17.2 | SAQ | Grimeton Sweden | Only active on special occasions like Alexanderson Day |
| 17.8 | NAA | Cutler Maine | |
| 18.1 | - | Russia | RDL/UPD/UFQE/UPP/UPD8 |
| 18.3 | HWU | Le Blanc France | |
| 18.9 | RKS | Russia | |
| 19.6 | GQD | Anthorn Britain | |
| 19.8 | NWC | Exmouth, Western Australia | |
| 20.27 | ICV | Tavolara Italy | |
| 20.5 | - | Russia | RJH63, RJH66, RJH69, RJH77, RJH99 |
| 20.76 | ICV | Tavolara Italy | |
| 20.9 | HWU | Saint-Assise, France | |
| 21.1 | RDL | Russia | Inactive |
| 21.4 | NPM | Hawaii USA | |
| 21.75 | HWU | Rosnay, France | |
| 22.1 | GZQ | Skelton Britain | |
| 22.2 | JJI | Ebino Japan | |
| 22.3 | - | Russia | |
| 23.0 | - | Russia | RJH63, RJH66, RJH69, RJH77, RJH99 |
| 23.4 | DHO38 | Rhauderfehn Germany | |
| 24.0 | NAA | Cutler, Maine USA | |
| 24.6 | NLK | Seattle, Washington USA | |
| 24.8 | NLF | Arlington, Washington USA | |
| 25.2 | NML | LaMoure, North Dakota USA | |
| 60.0 | WWVB | Fort Collins, Colorado USA | |
| 60.0 | JJY | Mount Hagane, Japan | |
| 60.0 | MSF | Anthorn, Cumbria, UK | |
| 66.666 | RBU | Russia | |
| 68.5 | BPC | Pucheng, China | |
| 77.5 | DCF77 | Mainhausen, Germany | |
| 77.5 | BSF | Guishan, Taiwan |
