List of VLF Transmissions
| Callsign | Frequency | Location of transmitter | Remarks |
|---|---|---|---|
| - | 11.905 kHz | Russia (various locations) | Alpha-Navigation |
| - | 12.649 kHz | Russia (various locations) | Alpha-Navigation |
| - | 14.881 kHz | Russia (various locations) | |
| ??? | 15.1 kHz | Rosnay, France | 400 kW. |
| - | 15.625 kHz | - | Frequency for horizontal deflection of electron beam in CRT televisions (576i) |
| - | 15.734 kHz | - | Frequency for horizontal deflection of electron beam in CRT televisions (480i) |
| GBR | 15.8 kHz | Rugby, England | (Regular transmissions ceased April 2003) Many publications listed its frequency as 16 kHz |
| JXN | 16.4 kHz | Helgeland (Norway) | |
| SAQ | 17.2 kHz | Grimeton (Sweden) | Only active at special occasions (Alexanderson Day) |
| - | ca. 17.5 kHz | ? | Twenty second pulses |
| NAA | 17.8 kHz | VLF station (NAA) at Cutler, Maine | Transmits occasionally Superpulses |
| RDL/UPD/UFQE/UPP/UPD8 | 18.1 kHz | Russia (various locations including Matotchkinchar, Russia) | |
| HWU | 18.3 kHz | Le Blanc (France) | Frequently inactive for longer periods |
| RKS | 18.9 kHz | Russia (various locations) | Rarely active |
| GBZ | 19.6 kHz | Anthorn (Britain) | Many operation modes, even Superpulses. |
| NWC | 19.8 kHz | Exmouth, Western Australia (AUS) | Used for submarine communication, 1 Megawatt. |
| ICV | 20.27 kHz | Tavolara (Italia) | |
| RJH63, RJH66, RJH69, RJH77, RJH99 | 20.5 kHz | Russia (various locations) | Time signal transmitter Beta |
| ICV | 20.76 kHz | Tavolara (Italia) | |
| HWU | 20.9 kHz | Saint-Assise, France | |
| RDL | 21.1 kHz | Russia (various locations) | rarely active |
| NPM | 21.4 kHz | Hawaii (USA) | |
| HWU | 21.75 kHz | Rosnay, France | |
| GBZ | 22.1 kHz | Skelton (Britain) | |
| - | 22.2 kHz | Ebino (Japan) | |
| ? | 22.3 kHz | Russia? | Only active on 2nd of each month for a short period between 11:00 and 13:00 (respectively 10:00 and 12:00 in winter), if 2nd of each month is not a Sunday |
| RJH63, RJH66, RJH69, RJH77, RJH99 | 23 kHz | Russia (various locations) | Time signal transmitter Beta |
| DHO38 | 23.4 kHz | near Rhauderfehn (Germany) | submarine communication |
| NAA | 24 kHz | Cutler, Maine (USA) | Used for submarine communication, at 2 megawatts. |
| ??? | 24.6 kHz | Seattle, Washington (USA) | 192 kW. |
| NLF | 24.8 kHz | Arlington, Washington (USA) | Used for submarine communication. |
Read more about this topic: Very Low Frequency
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