Question
What is the primary purpose of a dummy load?
Answer Options
- A) To prevent transmitting signals over the air when making tests
- B) To prevent over-modulation of a transmitter
- C) To improve the efficiency of an antenna
- D) To improve the signal-to-noise ratio of a receiver
Correct Answer: A
Explanation
A dummy load is a piece of test equipment (T7C03) that takes the RF energy output from a transmitter and safely converts nearly all of it into heat. It presents a perfect 50\text{ Ohm} resistive load to the transmitter, simulating a perfect antenna.
Its primary purpose is to prevent transmitting signals over the air when making tests or tuning adjustments. Using a dummy load ensures that all tests (like adjusting power output or checking frequency stability) can be made without causing interference to other operators.
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