Physics A-Level
Demodulation
What Demodulation means in Physics A-Level, as defined for AQA.
Definition of Demodulation
Check what you remember
Read the wording for your board, then hide it and explain Demodulation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Recovers the original information signal from the modulated carrier at the receiver.
Topics that use Demodulation
- Principles of communication systems (A-level only) (AQA A-Level)
Related terms
- Modulation
- Amplification
- Block diagram
- Input transducer
- Output transducer
- Real-time communication system
- Transducer stages
Using Demodulation in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Physics questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Physics A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge