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(Date Posted:03/07/2006 05:48:52)
More information can be found within the topic of Electromagnatism. This is for communication specific links.Radio Frequency - Generalhttp://imagers.gsfc.nasa.gov/ems/radio.html http://en.wikipedia.org/wiki/Radio_waveRadio Propagationhttp://en.wikipedia.org/wiki/Radio_propagationhttp://en.wikipedia.org/wiki/Skywave http://www.lerc.nasa.gov/WWW/MAEL/ag/agprop1.htm http://www.df5ai.net/Material/articles.html http://ecjones.org/propag.htmlBases/Experiment/Listening StationsPine Gaphttp://en.wikipedia.org/wiki/Pine_Gap http://www.fas.org/irp/facility/pine_gap.htm http://www.rense.com/general2/wx.htmMenwith Hill Station, UKhttp://www.fas.org/irp/facility/menwith.htmHAARPhttp://www.haarp.alaska.edu/
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