SignalPrep
Advanced Qualification · A-006 Receivers · A-006-003-007

Dans un récepteur, plus le facteur de bruit ("noise figure") est faible, plus :

  1. Ason rejet des signaux non désirés est grand
  2. Bsa sélectivité est grande
  3. Csa stabilité est grande
  4. Dsa sensibilité est grande

Correct answer: D — sa sensibilité est grande. Question tirée de la banque officielle d'ISDE.

Why

A lower noise figure means the receiver adds less static of its own, allowing it to hear very faint signals that would otherwise be lost in the background hiss. The full explanation — and one for every question — is in Pro.

Practise this section

Receivers is section A-006 of the Advanced exam: Receivers: superheterodyne design, selectivity, sensitivity, images, AGC and noise.

Drill A-006 — free, no account

This question in English · All A-006 questions