General exam question G2A04
Subelement G2, OPERATING PROCEDURES· Group G2A
G2A04
Which mode is most commonly used for voice communications on the 17- and 12-meter bands?
- A.Upper sideband (correct answer)
- B.Lower sideband
- C.Suppressed sideband
- D.Double sideband
WhyUpper sideband is the convention for voice communications on the 17 and 12 meter bands. 17 and 12 meters both sit above the 14 MHz line where the amateur SSB convention switches to upper sideband, the same rule that applies on 20, 15, and 10 meters, answer A. Lower sideband belongs to the bands below that line, not these two WARC bands.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2023-2027 NCVEC Element 3 pool (public domain); the explanation above is original writing, see our methodology.
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