Why the station behaves this way
The flare itself arrives at light speed, so the absorption change can begin within minutes. Bands and paths crossing the daylight region are usually affected first and most severely.
A common wrong turn
A flare is not the same event as a later geomagnetic storm. The immediate HF fade and the delayed effects from an arriving coronal mass ejection have different timing and indicators.
What to do at the radio
Check current X-ray flux and the D-region absorption map, compare daylight and darkness paths, try lower-absorption routes or higher bands when viable, and record when signals recover.
Use current equipment instructions, legal operating limits, the exact signal path, and observed conditions. A connector, software label, transformer ratio, or forecast value does not prove complete-system performance.
