+ Preemphasis LHS R signal L RHS signal Frequency doubler Pilot tone (a) + Preemphasis Composite baseband spectrum L+R Pilot tone L-R (DSB-SC) + FM modulator f (kHz) (b) 15 19 23 38 53 Lowpass filter Deemphasis + L Audio amplifier FM discriminator Narrowband filter Frequency doubler Bandpass R Audio ✗ Deemphasis + filter amplifier (c) and (c) FM stereo receiver. FIGURE A.25 FM stereo broadcasting: (a) FM stereo transmitter, (b) spectrum of FM stereo signal,

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Question
+
Preemphasis
LHS
R
signal
L RHS
signal
Frequency
doubler
Pilot
tone
(a)
+
Preemphasis
Composite
baseband
spectrum
L+R
Pilot tone
L-R
(DSB-SC)
+
FM
modulator
f (kHz)
(b)
15 19 23
38
53
Lowpass
filter
Deemphasis
+
L
Audio
amplifier
FM
discriminator
Narrowband
filter
Frequency
doubler
Bandpass
R
Audio
✗
Deemphasis
+
filter
amplifier
(c)
and (c) FM stereo receiver.
FIGURE A.25 FM stereo broadcasting: (a) FM stereo transmitter, (b) spectrum of FM stereo signal,
Transcribed Image Text:+ Preemphasis LHS R signal L RHS signal Frequency doubler Pilot tone (a) + Preemphasis Composite baseband spectrum L+R Pilot tone L-R (DSB-SC) + FM modulator f (kHz) (b) 15 19 23 38 53 Lowpass filter Deemphasis + L Audio amplifier FM discriminator Narrowband filter Frequency doubler Bandpass R Audio ✗ Deemphasis + filter amplifier (c) and (c) FM stereo receiver. FIGURE A.25 FM stereo broadcasting: (a) FM stereo transmitter, (b) spectrum of FM stereo signal,
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