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SESK: Stuff Everyone Should Know · sesk.info/ham-wavelength-vs-frequency

As a radio wave's frequency increases, what happens to its wavelength?

The wavelength gets shorter.

  1. It gets longer
  2. It stays the same
  3. It gets shorter ✔

Why: Radio waves all travel at the speed of light. So when more waves pass each second, each one has to be shorter.

Huh, didn't know that: That is why 2 meters is a higher frequency band than 10 meters.

The dad joke
Why are high-frequency waves so short? They never have time to grow.
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Sources

  1. NCVEC 2026-2030 Technician Question Pool (Element 2), errata Feb 19, 2026 https://www.ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf

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