Basic Qualification · B-004 Circuit components · B-004-001-007
L'augmentation du niveau d'un signal par un amplificateur s'appelle:
- Al'atténuation
- Bl'amplitude
- Cla modulation
- Dle gain
Correct answer: D — le gain. Question tirée de la banque officielle d'ISDE.
Why
An amplifier makes a weak radio signal stronger, and this increase in strength is technically called gain. The full explanation — and one for every question — is in Pro.
Practise this section
Circuit components is section B-004 of the Basic exam: The parts inside the box: resistors, capacitors, inductors, diodes, transistors, tubes and what each does in a circuit.
Drill B-004 — free, no account