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It is certainly hard to believe, that after so many months of its "official" start up
solar cycle 24 is showing NO signs of activity on the side of the Sun that we see
from Earth without the aid of special satellites !
Solar flux at rock bottom levels... near 70 units
The lower height of the night time F layer that is typical of the months of November
and December in the northern hemisphere helps a bit to compensate for the very
low solar activity.

The daytime maximum usable frequency curve shows a rather slow raising F2 layer MUF
as the Sun moves above the horizon, but due to the very little ionizing radiation
reaching the upper levels of the atmosphere, the free electron concentration at the
height of the F2 layer is very low, and for that very reason we see also a rather
low daytime maximum usable frequency peak .
Satellite monitoring of " the other side of the solar disc " show at least one region
that may soon develop higher magnetic activity and possibly sunspots too
This was an intermediate HF propagation update to followers of Dxers Unlimited's blog
73 and DX
Arnie Coro
radio amateur CO2KK
e-mail : inforhc@enet.cu
 
Source: http://dxersunlimited.blogspot.com/2009/12/9-days-without-sunspots.html
Via Yimber Gaviria, Colombia

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