Extra exam question E2B09
Subelement E2, OPERATING PROCEDURES· Group E2B
What kind of receiver can be used to receive and decode SSTV using the Digital Radio Mondiale (DRM) protocol?
- A.CDMA
- B.AREDN
- C.AM
- D.SSB (correct answer)
WhySSTV transmitted using the Digital Radio Mondiale protocol can be received and decoded with an ordinary SSB receiver feeding audio into decoding software. SSTV transmitted using the Digital Radio Mondiale audio protocol rides as an audio signal within an ordinary voice bandwidth, so it can be received and decoded using an SSB receiver feeding the audio into decoding software, the same basic setup used for other audio-based digital modes, answer D. CDMA and AREDN are unrelated wireless data technologies, and plain AM demodulation isn't how DRM-based SSTV audio is recovered.
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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