Advanced Qualification · A-005 Transmitters, modulation and processing · A-005-007-005
Additionner un bit à la longueur d'un mot d'un numériseur équivaut à ajouter _____ dB à la gamme dynamique d'un convertisseur?
- A3 dB
- B6 dB
- C1 dB
- D4 dB
Correct answer: B — 6 dB. Question tirée de la banque officielle d'ISDE.
Why
Each extra bit doubles the number of steps a digitizer can use to measure a signal, which doubles the range between the quietest and loudest sounds it can capture. The full explanation — and one for every question — is in Pro.
Practise this section
Transmitters, modulation and processing is section A-005 of the Advanced exam: Transmitters, modulation and processing: AM, FM, SSB, keying, speech processing, and the numbers behind occupied bandwidth.
Drill A-005 — free, no account