Very
Long Distance Propagation in the 144 MHz Band
Discussion of the May 20. 2003 Sporadic E opening. By DF5AI
and DK5YA. This is a *.pdf document of big size, more than 2
MBytes.
Thunderstorms and Sporadic 'E' - Is there a conclusion and do we
have thunderstorm effects on the tropical F region? Read the
paper as *pdf-file
here.