SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-10db-tenfold

Which decibel value represents a power increase from 20 watts to 200 watts?

10 dB, which means ten times the power.

  1. 12 dB
  2. 10 dB ✔
  3. 18 dB

Why: A 10 dB increase means the power is multiplied by ten. Going from 20 watts to 200 watts is exactly ten times as much.

Huh, didn't know that: 20 dB is 100 times the power, and 30 dB is 1000 times.

The dad joke
Why was the amplifier so proud? It finally made it to the 10 dB club.
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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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