Extra exam question E2D01
Subelement E2, OPERATING PROCEDURES· Group E2D
Which of the following digital modes is designed for meteor scatter communications?
- A.WSPR
- B.MSK144 (correct answer)
- C.Hellschreiber
- D.APRS
WhyMSK144 is the digital mode designed for meteor scatter communications. MSK144 is a WSJT-X digital mode specifically designed for meteor scatter work, built around very short transmission bursts that match the brief signal enhancements meteor trails produce, answer B. WSPR is built for weak-signal propagation reporting over long periods, Hellschreiber is an older visual text mode, and APRS is a position and status reporting protocol, none of them purpose-built for meteor scatter the way MSK144 is.
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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