What is the simplest form of pulse modulation?
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0
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145
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June 8, 2022
|
To accurately reproduce a modulating signal in ___
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0
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116
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June 8, 2022
|
To transmit intelligence using pulse modulation, which of the ___
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0
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128
|
June 8, 2022
|
Compared to a spark-gap modulator, the thyratron modulator exhibits ___
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0
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140
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June 8, 2022
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The damping diode in a thyratron modulator serves which of the following purposes?
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0
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141
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June 8, 2022
|
In a spark-gap modulator, what is the function of the pulse-forming network?
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0
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193
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June 8, 2022
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When pulse modulation is used for range finding in ___
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0
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173
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June 8, 2022
|
In pulse modulation, what term is used to indicate the ratio of ___
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0
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127
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June 8, 2022
|
Average power in a pulse-modulation system is defined as the
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0
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189
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June 8, 2022
|
In a square-wave modulated signal, total sideband power is what percentage of the total power?
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0
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169
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June 8, 2022
|
As the square wave modulating voltage is increased to the same amplitude as ___
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0
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145
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June 8, 2022
|
When a carrier is modulated by a square wave, what maximum number of ___
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0
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195
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June 8, 2022
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Which of the following circuits is used to generate a phase-shift keyed signal?
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0
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155
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June 8, 2022
|
When a carrier is phase-shift keying modulated ___
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0
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145
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June 8, 2022
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Phase-shift keying is most useful under which of the following code element conditions?
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0
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125
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June 8, 2022
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A simple phase modulator consists of a capacitor in ___
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0
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143
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June 8, 2022
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The primary advantage of phase modulation over frequency modulation is ___
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0
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258
|
June 8, 2022
|
Compared to fm, increasing the modulating frequency in ___
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0
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129
|
June 8, 2022
|
The frequency spectrums of a phasemodulated signal resemble the ___
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0
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154
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June 8, 2022
|
In phase modulation, (a) the AMPLITUDE of the modulating signal determines ___
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0
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117
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June 8, 2022
|
In a phase modulator, the frequency during the constant-amplitude portion of ___
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0
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134
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June 8, 2022
|
A 10 kilohertz, 10-volt square wave is applied as the phase-modulating signal to ___
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0
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108
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June 8, 2022
|
As the positive potential is increased on the cathode of ___
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0
|
122
|
June 8, 2022
|
A varactor is a variable device that acts as which of the following components?
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0
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116
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June 8, 2022
|
To ensure the frequency stability of ___
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0
|
106
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June 8, 2022
|
A multivibrator frequency modulator is limited to frequencies ___
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|
0
|
131
|
June 8, 2022
|
What type of circuit is used to remove the AM component in ___
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0
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184
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June 8, 2022
|
The reactance-tube frequency modulates the oscillator by which of the following actions?
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0
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102
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June 8, 2022
|
With no modulating signal applied, a reactance tube has ___
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0
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126
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June 8, 2022
|
In a reactance-tube modulator, the reactance tube ___
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0
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139
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June 8, 2022
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