ARLA/CLUSTER: Um SDR para Ondas Curtas na IEEE Spectrum magazine

[João Costa > CT1FBF]

Short Wave SDR in IEEE Spectrum magazine

Take your software-defined radio into the shortwave band to receive signals
sent around the globe by commercial, government, and amateur stations

In this article *Stephen Cass KB1WNR* explains how to eavesdrop on
long-distance communications with a converter board and a jerry-rigged
antenna.

"A couple of months ago, I wrote about how a cheap USB dongle designed to
pick up digital television broadcasts could be hacked to act as a
software-defined radio, or SDR. With this dongle and a TV antenna, I could
decode an impressive range of analog and digital radio transmissions from
about 50 megahertz up to a little over 2 gigahertz [see “A $40
Software-Defined Radio,� IEEE Spectrum, July]. But I wanted more. I wanted
to get below 50 MHz, into the shortwave bands where signals can be sent
vast distances around the globe by commercial, government, and amateur
broadcasters."

Read Software-Defined Radio, Part II
https://spectrum.ieee.org/geek-life/hands-on/softwaredefined-radio-part-ii

A $40 Software-Defined Radio
https://spectrum.ieee.org/geek-life/hands-on/a-40-softwaredefined-radio
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