When geo-magnetic storms happen, they cause Aurora (the Northern and Southern Lights) which in turn generate the musical, bird-flock tweeting or bizarre dog-bark sounds of "Chorus," which you can hear very well with the WR-3/WR-3E. All of these radio phenomena are audible most strongly in mid-to-upper latitudes of the northern or southern hemispheres, between 30 to 60 degrees north or south. Natural ELF/VLF radio emissions, first heard on long-distance telegraph lines in the 1880's, are produced by Earth's lightning storms, Auroral displays, and Earth's magnetic envelope surrounding the planet, called the "magnetosphere." Since the majority of natural VLF radio signals originate from the within the magnetosphere, they are very sensitive to geo-magnetic conditions and can tell scientists a great deal about what is happening with the Earth-Sun environment, particularly as an amazing amount of Natural Radio emissions are generated during magnetic storms. WR-3 Receiver Specifications/Information Sheet and Ordering form The popular-selling Model WR-3 is a sensitive, hand-held E-field" receiver designed for monitoring fascinating natural VLF radio phenomena in the 0.2-10 kHz (200-11,000 Hz) radio frequency range, where for the most part, no man-made radio signals exist!ĭown at these low radio frequencies, you can hear a great variety of naturally-occurring ELF/VLF radio signals, such as "Whistlers" "Tweeks" "Auroral Chorus" "Dawn Chorus" "Risers" "Wavering-Tones," "Hiss," and other intriguing radio phenomena which this receiver has been specifically designed to receive. Below is a second photo of the new WR-3 on my camper-van's rear bumper.
At the TOP of this page is a photo of the new WR-3 design with improved filters and a BNC antenna jack, and also shows a "Firestik II" telescoping whip antenna attached.
The photo just above is of a modified WR-3 receiver I use on recording trips shown atop a knapsack taken in summer 1998. This is more so as we are within solar-maximum over the years 2000 - 2002, and predicted maxima of magnetic storms in 20. Secondly, the variety of natural radio emissions is infinite - there are the "common" sounds you can hear with a receiver, but sometimes, surprising "uncommon" sounds to receive. This is why it can fascinating to coordinate with a friend or collegue with simultaneous listening
Thus, the natural radio sounds you may hear near your home location will differ somewhat from somebody elses, making for interesting comparisons. Whistlers occurring loudly in one location may sometimes sound considerably different at another location just several hundred miles or kilometres apart, and chorus or "risers" may be head in one location (especially in more northern locales) while whistlers (fallers) are being heard strongly in another locale (usually more southerly).
Natural ELF-VLF radio emissions vary in characteristics from place to place at any given time when they are occurring. The following page and links contain information about the popular WR-3 hand-held VLF receiver designed for the monitoring of naturally-occuring ELF-VLF radio phenomena, such as whistlers, dawn chorus, the great vriety of other natural VLF radio phenomena, and lightning-storm atmospherics. (Sales of the WR-3 receiver and the CD's fund this website and expeditions - thanks for your support! Steve McGreevy) The address will remain stable, as will QNET.COM addresses. Note: Please bookmark as a change in the site host will soon be made (dropping TRIAX.COM because of the increasing unreliability from Firstworld, Inc. WR-3 VLF Receiver Information WR-3 Pocket-portable Natural VLF Radio Receiver Information
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