Basic Qualification · B-003 Station assembly, practice and safety · B-003-012-001
What may happen if an SSB transmitter is operated with the microphone gain set too high?
- A It may cause harmonic interference on higher bands
- B It may cause interference to other stations operating on lower bands
- C It may cause digital interference to computer equipment
- D It may interfere with other stations in operating near its frequency
Correct answer: D — It may interfere with other stations in operating near its frequency. From the official ISED question bank, verified word for word.
Why
Setting the microphone gain too high on a single sideband transmitter makes the signal too wide, causing it to spill over into the frequencies right next to yours. The full explanation — and one for every question — is in Pro.
Practise this section
Building a station safely: power supplies, grounding, RF exposure, lightning, feedline routing, and what a transmitter, receiver and transceiver actually do.