What changed
Glossary — edited Sep 5, 2026 by NARA Master Administrator
Compared with the version from Sep 5, 2026. Note: Approved suggestion: Feedline
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**Elmer** — a mentor. Being one is the most valued role in the hobby.
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**Feedline** — the cable between radio and antenna, usually coax. Its loss and the match at each end decide how much power leaves the antenna; see [feedline and SWR](/wiki/station/feedline-and-swr).
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**FT8** — a weak-signal digital mode; see [FT8](/wiki/operating/digital-modes/ft8).
**Grid square** — Maidenhead locator, e.g. EM75, identifying your location for VHF and satellite work.
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