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Pregunta 595

What does SAR measure?

  1. Signal attenuation ratio
  2. Signal amplification rating
  3. The rate at which RF energy is absorbed by the bodyRespuesta correcta
  4. The rate of RF energy reflected from stationary terrain

Explicación

SAR is specific absorption rate: the rate at which body tissue absorbs RF energy, expressed in watts per kilogram. It is the quantity from which the field strength and power density limits were derived, and it is applied directly to portable devices used within centimeters of the body.

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Pregunta 595: What does SAR measure? · FCC Amateur Extra Class (Element 4) · Questena