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Decide Which HF Band Is Open for Day or Night Work

The HF Propagation Dashboard shows a band-by-band condition summary split into day and night columns, letting you choose the best band before you transmit.

Before you start

  • AetherSDR must be running. A radio connection is not required for this feature.
  • The dashboard fetches data from external propagation services; an internet connection is needed for live data.

Steps

  1. Click View > Propagation Conditions to open the HF Propagation Dashboard.
  2. Scroll to the HF Band Conditions section of the dialog.
  3. Read the condition shown for each of the four band rows under the Day and Night columns.
  4. Choose a band whose condition matches your current time of day (day or night at your location).

What each control does

Control Behavior
HF Band Conditions Displays a condition rating for each of four HF band rows, split into day and night columns.
Band condition value Shows one of three states: Good, Fair, or Poor, color-coded green, amber, or orange respectively.

Tips

  • The Current Conditions cards at the top of the dialog show SFI, SN, A-index, K-index, and X-ray values. Cross-reference these with the band conditions: a high SFI (120 or above) generally supports upper HF bands, while a high K-index (5 or above) indicates storm-level geomagnetic activity that degrades many paths.
  • Hover over any metric card to read a plain-language tooltip explaining what that index means for HF propagation.
  • If the A-index is elevated (15 or above), band conditions may remain unsettled even if the current K-index looks quiet.

Troubleshooting

  • All band condition values appear blank or do not update — the dashboard could not retrieve propagation data. Verify your internet connection and reopen the dialog.
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