Question
Where is an RF preamplifier installed?
Answer Options
- A) Between the antenna and receiver
- B) At the output of the transmitter power amplifier
- C) Between the transmitter and the antenna tuner
- D) At the output of the receiver audio amplifier
Correct Answer: A
Explanation
An RF preamplifier is a low-noise amplifier designed to increase the strength of very weak signals, thereby improving the receiver’s overall sensitivity (T7A01). To be most effective, it must be installed in the signal path between the antenna and the receiver.
For weak-signal VHF/UHF operation, the preamplifier is often mounted directly at the antenna (a mast-mounted preamp) to boost the signal before it travels down the feed line. This minimizes the effect of cable loss, which can otherwise overwhelm weak incoming signals.
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