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Natural Radio Lab

Natural Radio is the VLF radio emissions that originate terrestrially from lightning and within the earth's magnetosphere through interaction with the Sun. Most of these radio signals, sferics, tweeks, whistlers, chorus and others, occur within the range of human hearing, and can be heard with simple receivers as described on this site.

Natural Radio Lab also looks at Space Weather and Geomagnetic Storms. These are affected by solar activity such as the solar wind, sunspots, solar flares and coronal mass ejections or CMEs. In the popular media, these events are often loosely referred to as "solar storms" or "sun storms".

Please explore this site. I hope you go beyond reading what's here and actually go out and take the opportunity to hear whistlers or the enchanting sounds of the dawn chorus.

Mark Karney, N9JWF
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Where should I listen?

naturalradiolab.com Posted on January 26, 2012 by Mark KarneyOctober 21, 2012

Power line interference in the form of hum and buzz is very disruptive of Natural Radio listening. Your best listening will be when you are as far away from power lines as possible. You should be at least a couple of miles from transmission lines (The lines with big insulators, usually on metal towers) and a half mile or more from distribution lines (the lines that bring power to homes and businesses.) This isn’t difficult in a rural area, but is tough for the city or suburban dweller. Look for parks and other open spaces, or even neighborhoods with underground power lines. Finding a quiet listening area that is accessible during the pre-dawn hours is often the biggest challenge for the natural Radio Listener.

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