Is this a standing wave?

rbh

Fleet Admiral
Joined
Mar 21, 2009
Messages
7,939
Traditional Communication cable for the most part is lashed to a steel support messenger between poles. When I place the steel messenger cable and bring it up to tension and hit it with my wrench there is a wave that goes from one pole to the next and back, The tighter I pull up or add more tension the wave moves faster between poles.
I know about hot - cold sagging charts, just trying to put a name to the wave and the definition to the speed of the wave.
 

Tim Frank

Vice Admiral
Joined
Jul 29, 2008
Messages
5,333
It is effectively a standing wave, and the speed of the wave will be proportional to the square root of the tension....think guitar string. You don't want to play high C on that cable. :)
 
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