SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-usb-vhf-uhf

Which sideband is normally used for 10-meter HF, VHF, and UHF single-sideband communications?

Upper sideband.

  1. Lower sideband
  2. Upper sideband ✔
  3. Inverted sideband

Why: By convention, hams use upper sideband on 10 meters and on all VHF and UHF bands. It keeps everyone tuned the same way.

Huh, didn't know that: Single sideband is a form of amplitude modulation.

The dad joke
Why did the SSB signal take the upper side? It wanted to stay on the bright side.
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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

Test yourself in the game

Ham RadioWhich voice mode is often used for long-distance, weak signal contacts on VHF and UHF?Ham RadioWhat is the approximate bandwidth of a typical single sideband voice signal?Ham RadioWhat happens when microphone gain is set too high on SSB?

That's stuff everyone should know.