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Հարց 218

Which of the following types of noise can often be reduced by a digital noise reduction?

  1. Broadband white noise
  2. Ignition noise
  3. Power line noise
  4. All these choices are correctՃիշտ պատասխան

Բացատրություն

Digital noise reduction separates the statistical structure of the wanted signal from that of the interference and suppresses the rest, so it can help against broadband white noise, ignition noise and power line noise alike. How much it helps varies with the noise type, but none of the three is excluded.

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Հարց 218: Which of the following types of noise can often be reduced… · FCC Amateur Extra Class (Element 4) · Questena