Basic Qualification · B-002 Operating and procedures · B-002-004-004
How can on-the-air interference be minimized during lengthy transmitter testing?
- A Use a resonant antenna
- B Use a dummy load
- C Choose an unoccupied frequency
- D Use a non-resonant antenna
Correct answer: B — Use a dummy load. From the official ISED question bank, verified word for word.
Why
A dummy load is a special device that looks like an antenna to your radio but absorbs all your signal as heat instead of sending it into the air. The full explanation — and one for every question — is in Pro.
Practise this section
How to operate: calling, phonetics, Q-signals, repeaters, nets, emergency traffic, and the courtesies that keep a band usable.