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The International Amateur Radio Union has been the worldwide voice of radio amateurs, securing and safeguarding the amateur radio spectrum since 1925. Read more about us →

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DARPA: Satellites to monitor Ionosphere
The Defense Advanced Research Project Agency (DARPA, USA) has issued the first call for proposals for its Ouija programme, which aims to use sensors on “near-Earth satellites” (VLEOs) to gain new insights into the propagation of HF (shortwave) radio waves …
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