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HF band operations
This page turns space-weather and ionospheric data into operator guidance across 20m, 17m, 15m, 12m, and 11m, so you can see which bands are carrying, which are waking up, and which still need more lift.
Live path
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Band stack
How to read conditions
Rising solar flux usually helps 15m, 12m, and then 11m before the lower bands need it.
Low Kp and lower A-index support steadier long-haul openings and less absorption on the edge.
When MUF climbs, 15m and 12m usually wake first, while 11m becomes more dramatic.
Even with decent flux, disturbed magnetic conditions can shorten or fragment an opening fast.
Band focus
Operating window
Use daylight, gray line, MUF, and the magnetic field to judge which HF bands are likely to open first and how long they may stay usable.
Most favorable opening window.
Which band is carrying best right now.
How calm the geomagnetic field is.
North-south magnetic direction
Total magnetic field
Solar wind speed
Solar wind particle density
Opening dial
Operator view
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Band comparison
Regional lift
Likely paths