[SQ9KFZ]

http://dx.qsl.net/propagation/

http://www.qsl.net/ct1boh/propagation.htm

http://www.pta.edu.pl/orion/sun/aktualne.html

http://hamradio.pl/sq9jdo...anel/index.html

http://www.mountainlake.k...path.cgi?map=eu

http://www.dxinfocentre.com/tropo_eur.html

http://eagle.um.zielona-g.../propagacja.htm

http://prop.hfradio.org/

http://www.hamqsl.com/solar.html