Question 4. Select the statement that best describes the PM wave. a. Carrier phase angle changes represent the PM modulated signal, however, unlike FM and AM modulated carriers, it is not always easy to see these phase changes in the plot. b. The FM signal accurately represents the message. c. Although PM and FM techniques are classified as angular modulation techniques, they cannot be used interchangeably (i.e., modulated with FM and demodulated with PM, and visa versa). d. All statements are correct.

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Question 4. Select the statement that best describes the PM wave.
a. Carrier phase angle changes represent the PM modulated signal, however, unlike FM and AM modulated
carriers, it is not always easy to see these phase changes in the plot.
b. The FM signal accurately represents the message.
c. Although PM and FM techniques are classified as angular modulation techniques, they cannot be used
interchangeably (i.e., modulated with FM and demodulated with PM, and visa versa).
d. All statements are correct.

Figure 1
MATLAB R2020a - academic use
File
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AM modulation
Message
10
2
Compare Import
Data
New
New
New
Оpen
Script Live Script
FILE
• C: > Users dnguye98 • Do
Current Folder
Command Wi
Details
-5
ans
Workspace
-10
-2
2
2
Name
Value
time
x 103
time
x 103
Ac
6
combined message and PM signal
combined message and FM signal
Am
2
fx >>
10
10
10
10
ans
beta
5.1429
5
1x301 double
fc
9000
fm
700
kp
1.5708
-5
-5
kvco
1800
-10
-10
-10
-10
m
1x2001 double
>
1
2
time
x 103
time
x 103
amplitude
amplitude
amplitude
amplitude
Transcribed Image Text:Figure 1 MATLAB R2020a - academic use File Edit View Insert Tools Desktop Window Help HOME PLOTS APPS Find Files AM modulation Message 10 2 Compare Import Data New New New Оpen Script Live Script FILE • C: > Users dnguye98 • Do Current Folder Command Wi Details -5 ans Workspace -10 -2 2 2 Name Value time x 103 time x 103 Ac 6 combined message and PM signal combined message and FM signal Am 2 fx >> 10 10 10 10 ans beta 5.1429 5 1x301 double fc 9000 fm 700 kp 1.5708 -5 -5 kvco 1800 -10 -10 -10 -10 m 1x2001 double > 1 2 time x 103 time x 103 amplitude amplitude amplitude amplitude
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