What changed
Glossary — edited Sep 5, 2026 by NARA Master Administrator
Compared with the version from Sep 5, 2026. Note: Approved suggestion: SSB
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**Simplex** — direct radio-to-radio operation without a repeater.
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**SSB** — single sideband, the voice mode of the HF bands. Lower sideband below 10 MHz, upper above, by long convention.
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**SWR** — standing wave ratio; see [feedline and SWR](/wiki/station/feedline-and-swr).
**VE / VEC** — volunteer examiner and volunteer examiner coordinator.
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