Introduction  
  What is Radar?  
  Radar in World War II  
  Frequent Questions  
  Study  
  .  
  
  
When radio waves hit things like aircraft, ships and buildings they bounce back. By listening for the echoes from a burst of radio waves, you can work out where things are – like the distance, direction and height of an aircraft. Originally known by the ‘cover name’ Radio Direction Finding (RDF) the term ‘radar’ was later adopted (radio detection and ranging).
  

 

  Introduction  
  What is Radar?  
  Radar in World War II  
  Frequent Questions  
  Study  
  .  
  
 

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