DXAlert

Utilities

$3.99 · Designed for iPad. Not verified for macOS.

DXAlert – Propagation Conditions Stay ahead of band openings with real-time solar and geomagnetic data from NOAA Space Weather Prediction Center. Whether you're a CB radio operator, ham radio enthusiast, or just curious about propagation, DXAlert gives you the key numbers you need — updated live, straight from official NOAA sources. What DXAlert monitors: • Solar Flux Index (SFI) — how active the Sun is today • Planetary K-index — geomagnetic disturbance level • Estimated A-index — daily geomagnetic activity • Sporadic-E seasonal likelihood — is Es season active? Bands covered: • CB (27 MHz) — Sporadic-E & F2 skip • 6m — Es + ionospheric conditions • 2m & 70cm — ionospheric activity context Features: • Live dashboard with visual condition gauge • All-bands overview at a glance • Historical SFI and Kp charts (up to 30 days) • Background alerts when conditions exceed your thresholds • No account required, no subscription, no ads • Data: NOAA SWPC (free, public) Honest about limitations: Sporadic-E cannot be reliably predicted from solar data — DXAlert shows a seasonal climatology estimate, not a live Es detection. For confirmed openings, check DX cluster spots and beacon monitoring. Also from DameAppku: TropoDX — tropospheric ducting forecasts for 2m and 70cm.

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The developer, Martin Kuera, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    • Martin Kuera
    Size
    • 3.3 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2025 Martin Kučera. All rights reserved.
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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