Build your own QRSS detector
Kevin P. Inscoe
kevin at inscoe.org
Thu Jul 19 11:25:42 CDT 2007
"This month's Gadget Freak comes courtesy of investment banker Hans Summers.
He built a simple receiver capable of detecting QRSS transmissions on a fixed
frequency. The QRSS receiver is powered by a computer's USB port and the
audio output feeds into the PC's sound card. Hans used a toroidal transformer
as matching and input filter, connected directly to a 30m (10MHz) dipole
antenna and a useful oscillator/mixer IC as a crystal oscillator and mixer."
Kevin P. Inscoe Amateur Radio Call Sign: KE3VIN
Deltona, FL 32738 28.9497N by 81.1952W
kevin [at] inscoe [dot] org http://kevininscoe.com
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