Very Low Frequency - List of VLF Transmissions

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.

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