Technician exam question T8D02
Subelement T8, SIGNALS AND EMISSIONS· Group T8D
T8D02
What is FT8?
- A.A wideband FM voice mode
- B.A digital mode capable of low signal-to-noise operation (correct answer)
- C.An eight-channel multiplex mode for FM repeaters
- D.A digital slow-scan TV mode with forward error correction and automatic color compensation
WhyFT8 is a digital mode capable of low signal-to-noise operation. FT8 is a weak-signal digital mode designed to decode reliably even when a signal is buried well below the noise floor, making very low signal-to-noise ratio contacts possible, answer B. It isn't a wideband FM voice mode (A), an FM repeater multiplexing scheme (C), or an SSTV variant (D), those all describe unrelated technologies.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.