Question
What device increases the transmitted output power from a transceiver?
Answer Options
- A) A voltage divider
- B) An RF power amplifier
- C) An impedance network
- D) All these choices are correct
Correct Answer: B
Explanation
The device specifically designed to take the low-level radio frequency (RF) signal from a transceiver and increase its power is an RF power amplifier (often just called an amplifier or a linear amplifier in HF work). The amplifier uses a power source to convert a small input signal into a much stronger output signal.
Amateurs typically use external amplifiers to boost their signal from 100 watts up to the legal maximum of 1500 watts (T1B12), enabling contacts over much greater distances. A key component of an amplifier is the transistor, which provides the necessary power gain (T6B10).
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