title: Signal element
text: # Signal element
  
  In signal theory, a signal element is a part of a signal that is distinguished by its:
  
  * duration,
  * magnitude,
  * nature (the modulation technique used to create the element),
  * relative position to other elements,
  * transition from one signal state to another.
  
  The rate at which signal elements are sent is called the symbol rate and is measured in baud.
  
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