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  1. ON4AA

    Free smartphone app tells you what band to use

    Thanks for your encouragement, Moleculo! Yesterday, I added a bunch more ionosonde stations.
  2. ON4AA

    Free smartphone app tells you what band to use

    @Hurricane145 With all due respect, but you didn't get the point. What the app shows, are not predictions but live measured data. That's a whole different ball game.
  3. ON4AA

    Free smartphone app tells you what band to use

    Not everyone has that luxury of time. Think for example of SOTA operators.
  4. ON4AA

    Free smartphone app tells you what band to use

    A new version of the no-nonsense propagation app with Maidenhead grid locator entry is now available. To use the new version straight away, first empty the browser cache with Ctrl+Shift+R or equivalent. The desktop experience will now also be better. Printing to PDF, for example, was also...
  5. ON4AA

    Free smartphone app tells you what band to use

    Here are my creds: My web site, hamwaves.com has been referenced in: ARRL Antenna Book, Edition 25 ON4UN’s Low-Band DXing, ARRL, Edition 5 Rothammel's Antenna Book Moreover, it is a smartphone web browser app, which is generally safer than an ordinary APK app. So, no worries. It's about time...
  6. ON4AA

    Free smartphone app tells you what band to use

    Right on time for the 2024 CQ WPX SSB contest: Unsure what band to use? Then this free, no-nonsense smartphone browser app with real-time local ionospheric conditions is for you! There is also a desktop version.