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Вопрос 576

In what units are the wavelength scales on a Smith chart calibrated?

  1. In fractions of transmission line electrical frequency
  2. In fractions of transmission line electrical wavelengthПравильный ответ
  3. In fractions of antenna electrical wavelength
  4. In fractions of antenna electrical frequency

Объяснение

One complete trip around the rim of the chart corresponds to moving half a wavelength along the line, so the rim scales are graduated in fractions of a wavelength as it exists inside that line. Because the line's velocity factor shortens the wavelength, these are not free-space or antenna wavelengths.

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Вопрос 576: In what units are the wavelength scales on a Smith chart… · FCC Amateur Extra Class (Element 4) · Questena