Extra exam question E2E13
Subelement E2, OPERATING PROCEDURES· Group E2E
Which of these digital modes has the highest data throughput under clear communication conditions?
- A.MFSK16
- B.170 Hz shift, 45 baud RTTY
- C.FT8
- D.PACTOR IV (correct answer)
WhyUnder clear communication conditions, PACTOR IV delivers the highest data throughput among these digital modes. Under clear communication conditions, PACTOR IV delivers the highest data throughput of the modes listed, since it's built with adaptive, higher-order modulation specifically to maximize speed when signal conditions are good, answer D. MFSK16, narrow-shift RTTY, and FT8 are all comparatively slow by design, trading throughput for either simplicity, narrow bandwidth, or weak-signal decoding rather than raw speed.
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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