SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-fm-repeaters

Which type of modulation is commonly used for VHF and UHF voice repeaters?

FM or PM.

  1. SSB
  2. AM
  3. FM or PM ✔

Why: Nearly all VHF and UHF voice repeaters use FM, or its close cousin phase modulation. FM gives clear, quiet audio for local contacts.

Huh, didn't know that: Many repeaters require a CTCSS tone, sometimes called a PL tone, to access them.

The dad joke
Why did the FM signal get invited back to the repeater? It always made a good repeat appearance.
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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

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