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Question 123

What is the formula for converting frequency to approximate wavelength in meters?

  1. Wavelength in meters equals frequency in hertz multiplied by 300
  2. Wavelength in meters equals frequency in hertz divided by 300
  3. Wavelength in meters equals frequency in megahertz divided by 300
  4. Wavelength in meters equals 300 divided by frequency in megahertzCorrect answer

Explanation

Dividing the free-space propagation velocity, about 300,000,000 metres per second, by a frequency expressed in megahertz gives wavelength in metres as 300 divided by frequency in MHz. For example 146 MHz gives about 2.05 metres, which is why the band is called 2 metres.

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Question 123: What is the formula for converting frequency to approximate… · FCC Technician Class (Element 2) · Questena