Basic Qualification · B-008 Interference and suppression · B-008-003-001
What term describes the undesired creation of new frequency components when one or more signals enter a non-linear device?
- A Linear distortion
- B Aliasing
- C Intermodulation
- D Phase distortion
Correct answer: C — Intermodulation. From the official ISED question bank, verified word for word.
Why
Intermodulation happens when two or more signals mix inside a device that does not behave linearly, creating new frequencies that were not there before. The full explanation — and one for every question — is in Pro.
Practise this section
When things interfere: harmonics, overload, RFI to and from your station, filters, ferrites and how to fix the neighbour's TV.