A preselector and an amplifier stage make up the RF portion. The RF amplifier determines the receiver's sensitivity. Because the RF amplifier is the first active device a received signal encounters, it is the principal source of noise and hence a major component in establishing the receiver's noise figure. Depending on the desired sensitivity, a receiver can have one or several RF amplifiers, or none at all. EXCEPT FOR ONE, there are several advantages to using RF amplifiers in a receiver. Select your answer. Image-frequency rejection is improved. Greater gain, therefore improved sensitivity High sensitivity and fidelity Enhanced signal-to-noise ratio

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A preselector and an amplifier stage make up the RF portion. The RF amplifier
determines the receiver's sensitivity. Because the RF amplifier is the first active device
a received signal encounters, it is the principal source of noise and hence a major
component in establishing the receiver's noise figure. Depending on the desired
sensitivity, a receiver can have one or several RF amplifiers, or none at all. EXCEPT
FOR ONE, there are several advantages to using RF amplifiers in a receiver.
Select your answer.
Image-frequency rejection is improved.
Greater gain, therefore improved sensitivity
High sensitivity and fidelity
Enhanced signal-to-noise ratio
Transcribed Image Text:A preselector and an amplifier stage make up the RF portion. The RF amplifier determines the receiver's sensitivity. Because the RF amplifier is the first active device a received signal encounters, it is the principal source of noise and hence a major component in establishing the receiver's noise figure. Depending on the desired sensitivity, a receiver can have one or several RF amplifiers, or none at all. EXCEPT FOR ONE, there are several advantages to using RF amplifiers in a receiver. Select your answer. Image-frequency rejection is improved. Greater gain, therefore improved sensitivity High sensitivity and fidelity Enhanced signal-to-noise ratio
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