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Вопрос 417

What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR)?

  1. Sample rateПравильный ответ
  2. Sample width in bits
  3. Integral non-linearity
  4. Differential non-linearity

Объяснение

A sampled system can represent frequencies only up to half its sample rate, so the converter's sample rate fixes the maximum bandwidth a direct-sampling receiver can digitize at once. The number of bits sets dynamic range, not bandwidth.

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Вопрос 417: What aspect of receiver analog-to-digital conversion… · FCC Amateur Extra Class (Element 4) · Questena