This image is from a 122 hours (~5 days) recording the frequency in Denmark [0] The red bar is avg. over 40000 sec (11 hours). [1] is the original source trans

This image is from a 122 hours (~5 days) recording the frequency in Denmark [0] The red bar is avg. over 40000 sec (11 hours). [1] is the original source translated from danish. [0] http://webx.dk/oz2cpu/radios/50hz-kurve122h.gif http://webx.dk/oz2cpu/radios/50hz-kurve122h.gif [1] http://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwebx.dk%2Foz2cpu%2Fradios%2F50hz-normal.htm http://translate.google.com/translate?sl=da&tl=en&js...