Natural Radio and VLF Signal Reception
Find resources for listening to Very Low Frequency (VLF) natural radio signals and space weather phenomena.
Natural radio listening involves the very low frequency (VLF) and extremely low frequency (ELF) bands, where operators can hear fascinating signals generated by natural phenomena. These signals originate from sources like lightning, aurora, and solar activity, creating unique sounds often described as whistlers, tweeks, and sferics. Unlike man-made transmissions, natural radio offers a different kind of amateur radio activity, focusing on passive reception and scientific observation rather than two-way QSOs.
Hams interested in natural radio can find resources on receiving these signals, often using specialized VLF antennas and software like Spectrum Lab for analysis. Many sites provide live streaming audio from remote receivers, allowing listeners to experience these sounds of space weather. Some projects even offer synchronized stereo pairs from receivers separated by thousands of miles, providing a unique perspective on propagation and signal origin.
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A page about fascinating Very Low Frequency and natural radio, with lots of streaming audio links from remote receivers. Some experimental stereo pairs around the world. -
Radio signals of natural origin -
Sounds of Space Weather by S. McGreevy, N6NKS -
Using Spectrum Lab for the reception of VLF natural radio