Extra exam question E2B07
Subelement E2, OPERATING PROCEDURES· Group E2B
E2B07
Which types of modulation are used for amateur television DVB-T signals?
- A.FM and FSK
- B.QAM and QPSK (correct answer)
- C.AM and OOK
- D.All these choices are correct
WhyAmateur DVB-T fast-scan television signals use QAM and QPSK modulation. Amateur DVB-T fast-scan television uses QAM and QPSK as its modulation schemes, the same digital modulation techniques used in broadcast digital television standards, answer B. FM, FSK, AM, and OOK are all real modulation types used elsewhere in amateur radio, but they're not what carries an amateur DVB-T signal.
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.
Related questions
- E2B01In digital television, what does a coding rate of 3/4 mean?
- E2B02How many horizontal lines make up a fast-scan (NTSC) television frame?
- E2B03How is an interlaced scanning pattern generated in a fast-scan (NTSC) television system?
- E2B04How is color information sent in analog SSTV?
- E2B05Which of the following describes the use of vestigial sideband in analog fast-scan TV transmissions?