A SPACE SHUTTLE EXPERIMENT WITH RADIO WAVES AT AUDIO FREQUENCIES

摘要

Tired of hearing the same old stuff on your radio? Do you tend to think of 160meters as the 'bottom of the band'? In this paper we'll discuss both manmade andnatural radio activity between 100 Hz and 10kHz, the absolute bottom end of the VLF(Very Low Frequency) spectrum. If we call 5 kHz the center of the band, we're talkingabout a 60,000 meter wavelength! We'll be describing a simple and inexpensive(under $40) VLF receiver design, and present some ideas on how you can participatein scientific data gathering with space scientists involving VLF propagation (andpossibly share some of your ham radio expertise with US "igh school students andother experimenters) during a March, 1992 space Shuttle experiment. Letters invitingparticipation in the listening experiment have already gone out to 10,000 high schoolphysics classes in the US, and both amateurs and private experimenters are alsobeing invited to participate.