Given that the aurora is never closer to the ground than 50 miles, the air is far too thin to transmit any weak sound waves that might be produced to your ears.of the propagation of ELF/VLF waves in ionosphere and Earth-ionosphere. It's a psychological thing - you see a spectacular display of auroral light and in your head hear sounds your imagination might expect like crackling and whooshing. This kit is a sensitive receiver that detects very low frequency Of course another reason people might hear auroras is they imagine a soundtrack. With the K8TND Sferics Receiver you can explore the little known world of strange nature generated and man made low frequency signals. Elcome to the world of Sferics, Tweeks, Whistlers, and other VLF/ELF phenomenon. K8TND Sferics Receiver This product has been discontinued.
Radio waves given off by auroras and other forms of natural 'Earth energy' like lightning range from 19 to 1,800 miles long or longer! To make them available to our senses we use a radio receiver. The pigments in our retinas convert these waves into visible images of the world around us. This handheld device converts very low frequency radio waves produced from the interaction of the solar electrons and protons with the Earth's magnetic field into sounds you can listen to with a pair of headphones.We're used to waves of light which are very, very short, measuring in the millionths of an inch long. This video shows a Raspberry pi2b being setup to act as an.- 18Khz CW VLF RF over IP receiver - RE-transmitter -Gstreamer scripts are used to provide the V.If you're like me and hard of auroral hearing, a small VLF radio receiver will do the job nicely. The WR-3 is a 'wide-band' audio-band receiver designed to monitor naturally-occurring ELF-VLF radio signals between 300 Hz up to about 12 to 13 kHz only (audio-frequency whistlers, dawn-chorus, lightning sferics and tweeks, and so forth, that are. See the online WR-3 Listening Guide for much more informations and specs.
That's all there is to it.The receiver picks up lots of things besides aurora including a big 'unnatural' hum from alternating or AC current in power lines and home appliances. Plug in a set of headphones and you're ready to listen. The on-off switch also controls the volume. The components are housed in a small metal box with a whip antenna and powered by a 9-volt battery.
Don't stand under any trees either. I drive out to a open 'radio quiet' rural area, turn on the switch and raise the antenna to the sky. You'll need to be at least a quarter mile from any of those sources in order to hear the more subtle music of the planet.
Wr-3 Vlf Receiver Series Of Descending
What you hear are a series of descending whistles that remind me of the whistling sound of bombs released from a plane like you'd see in a World War II movie. After their long journey, the higher frequency waves arrive before the lower frequency ones causing them to spread out in tone. These things sound really eerie. Flurries of tweeks have an almost musical quality like someone plucking the strings of a piano.When those same lightning radio waves enter Earth's magnetosphere and interact with the particles there, they can cycle back and forth between the poles traveling tens of thousands of miles to create what are called whistlers. When that energy gets ducted through the upper layers of Earth's atmosphere called the ionosphere over distances of several thousand miles, it emits another type of sound called ' tweeks' which remind a listener of pings or dripping water.
How astonishing it was to sense our planet's magnetosphere through sound. Most of these lasted 3 to 4 seconds, meaning they'd traveled back and forth between Earth's magnetic poles. As they thunderheads drifted far to the east, whistlers were heard a couple seconds after the appearance of every distant lightning flash.
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