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world timezones
WORLD
Time Zone Map
ts950sd HF radio
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custom Sierra Fox QSL
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11m/SWL - Radio station
dxcc Italy
Grid: JN45PN
 Earth Gray line view [Refreshed every 3 minutes]

Long distance ionospheric propagation of HF signals occurs best at sunrise or sunset. Along the gray line the absorbing D-Layer has not yet formed where the sun is arising, while the other side of the world approaching darkness has the D-Layer disappearing quickly with the highest atmospheric layers maintaining strong ionization. This is very good for DX calls; we meet excellent conditions for 10000 miles contacts on several HF bands.

IT