Basic Qualification · B-003 Station assembly, practice and safety · B-003-014-010
What is the function of transmit/receive switching in a transceiver?
- A To allow more than one transmitter to be used
- B To enable one antenna to be used for both transmitting and receiving
- C To change antennas for operation on other frequencies
- D To prevent RF currents entering the transmitter circuits
Correct answer: B — To enable one antenna to be used for both transmitting and receiving. From the official ISED question bank, verified word for word.
Why
A transceiver combines a transmitter and receiver in one unit, but they cannot share the antenna at the exact same moment without damaging the sensitive receiver circuits. 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.