VLF Transmitters

Blog Blog

Wednesday, Sep 19 2012 by

Very low frequency or VLF refers to radio frequencies (RF) in the range of 3 kHz to 30 kHz and wavelengths from 10 to 100 kilometres. Since there is not much bandwidth in this band of the radio spectrum, audio (voice) cannot be transmitted, and only low data rate coded signals are used. The VLF band is used for a few radio navigation services, government time radio stations which broadcast time signals to set radio clocks, and for secure military communication. Since VLF waves penetrate about 40 meters into saltwater, they are used for military communication with submarines.

RJH-69 Russian time station (Google Maps)
RJH-69 Russian time station

RJH-86 Russian time station (Google Maps)
RJH-86 Russian time station
RJH-63 Russian time station (Google Maps)
RJH-63 Russian time station

HWU French VLF transmitter (Google Maps)
HWU French VLF transmitter

NML4 USN VLF Transmitter (Google Maps)
NML4 USN VLF Transmitter

Golfo Nuevo VLF Transmitter (Google Maps)
Golfo Nuevo VLF Transmitter
RTZ (Russian time station) (Google Maps)
RTZ (Russian time station)

VLF Transmitter DHO38 (Google Maps)
VLF Transmitter DHO38
VLF Mafate (Google Maps)
VLF Mafate

NAA USN VLF Transmitter / NAVRADSTA Cutler (Google Maps)
NAA USN VLF Transmitter / NAVRADSTA Cutler