Very Low Frequency (VLF)

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Click the name of a signal to see more detailed information, possible decoding, and additional sound and waterfall samples

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(Currently in active use)
Status
Unknown or Intermittent
Signal Name Description Frequency Mode Modulation Bandwidth Location Sample Audio Waterfall image
Lightning Sferics VLFVery Low Frequency (3-30 kHz) RFRadio Frequency emissions from lightning in the atmosphere that can affect up to HFHigh Frequency (3-30 MHz) frequencies and beyond depending on strength. Has a popping crackle sound with both USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) and AMAmplitude Modulation modes of reception. HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). — 30 MHzMegaHertz (MHz) 10^6 Hz Worldwide Lightening Sfpherics.png

Pages in category "VLF"

The following 2 pages are in this category, out of 2 total.