Basic Qualification · B-002 Operating and procedures · B-002-003-010
Which sideband is commonly used on 3755 kHz for voice operation?
- A Double
- B Upper
- C Lower
- D Independent
Correct answer: C — Lower. From the official ISED question bank, verified word for word.
Why
On the 3.7 MHz band, which falls below 10 MHz, amateur radio rules and tradition dictate using Lower Sideband for voice communication. 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.