Basic Qualification · B-008 Interference and suppression · B-008-001-003
If a neighbour reports television interference whenever you transmit, no matter what band you use, what is probably the cause of the interference?
- A Deficient harmonic suppression
- B Receiver overload
- C Incorrect antenna length
- D Spurious emissions
Correct answer: B — Receiver overload. From the official ISED question bank, verified word for word.
Why
When a neighbour's television is affected by your transmissions on every band you use, the strong signal is likely overwhelming the TV's front end, a condition known as receiver overload. 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.