Extra exam question E8C06
Subelement E8, SIGNALS AND EMISSIONS· Group E8C
E8C06
What is the bandwidth of an FT8 signal?
- A.10 Hz
- B.50 Hz (correct answer)
- C.600 Hz
- D.2.4 kHz
WhyAn FT8 signal has a bandwidth of about 50 Hz. An FT8 signal occupies a bandwidth of about 50 Hz, a tightly packed multitone signal designed to fit many simultaneous FT8 conversations into a narrow slice of spectrum, answer B. 10 Hz is narrower than FT8 actually needs, and 600 Hz and 2.4 kHz are far wider than this compact digital mode occupies.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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