EM Spectrum
Very Low Frequency (VLF) Radio
10.0 kHz
Cosmic Octave Color
Derived visible color (436 nm)
Display swatch #466fff
EstablishedPhysical Measurement
Evidence Level
Established
Source Count
1
Last Reviewed
March 23, 2026
Directly measured, standardized, or well-supported in mainstream scientific or technical literature.
This entry documents a measurable or standardized frequency reference. The atlas is a research and practice guide, not a medical diagnostic instrument.
Review the evidence modelVLF radio waves (3–30 kHz) used for submarine communication and navigation. Can penetrate seawater.
Wavelength
3.4 cm
Nearest Note
D#9 (+8¢)
Claim Type
Physical Measurement
Cosmic Octave Color
Derived visible color (436 nm) · #466fff
Source
Electromagnetic spectrum
Sources
Optics and Physics References
1 atlas references
Used for visible-light wavelengths, electromagnetic ranges, and general physics conversions.
Optics, physics, and electromagnetic-spectrum references.
radioem-spectrumvlf