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

What is the unit of frequency?

Hertz, one cycle per second.

  1. Henry
  2. Farad
  3. Hertz ✔

Why: Frequency counts how many complete cycles a wave makes each second. One cycle per second is one hertz. Henry and farad are units for inductors and capacitors.

Huh, didn't know that: Heinrich Hertz proved radio waves exist with experiments in the late 1880s.

The dad joke
What did the radio wave say to the frequency counter? Stop checking up on me, it Hertz.
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Sources

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

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