How do you appreciate the use of reflection of light

How do you appreciate the use of reflection of light by a concave mirror in making of TV antenna dishes ?

  1. T.V antenna dishes contain concave surface to receive the signals from the distinct communication satellites.
  2. The concave shape of a dish antenna helps to reflect the signal to the focal point of the dish.
  3. A device known as feed horn is mounted at the focal point which gathers the signals and sends the to a processing unit.
  4. Hence I appreciate the working process of T.V. antenna dishes.