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  "path": "/mircemk/diy-shortwave-propagation-monitor-measure-ionosphere-73a50b",
  "publishedAt": "2026-04-30T06:33:31.000Z",
  "site": "https://www.hackster.io",
  "textContent": "Learn how to make a simple device for monitoring the state of the ionosphere and the quality of shortwave signals using the CA3089 chip.",
  "title": "DIY Shortwave Propagation Monitor - Measure Ionosphere"
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