Thank-you Markus,

Yes, these little dashes are strange aren't they? Perhaps someone
on the Reflector could enlighten us.  They were quite strong on
an argo plot from the night before.

73 Joe


On Thu, 20 Dec 2012, Markus Vester wrote:

Joe, Stefan, well done both!
 
Joe I'm still curious about the many short dashes in your wspr spectrogram, 
which look like some multitone data transmission. Could those be some form of 
powerline communication?
 
Best 73,
Markus
 

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