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سؤال 216

What power level does a receiver minimum discernible signal of -100 dBm represent?

  1. 100 microwatts
  2. 0.1 microwatt
  3. 0.001 microwatts
  4. 0.1 picowattsپاسخ درست

توضیح

The unit dBm is power referred to 1 milliwatt, so −100 dBm is ten decades below a milliwatt, that is, 10−10 mW. That equals 10−13 watt, which is 0.1 picowatt.

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سؤال 216: What power level does a receiver minimum discernible signal… · FCC Amateur Extra Class (Element 4) · Questena