Analog and Digital Modulation » Exercise – 1
2. In low level modulation system , the amplifiers following the modulated stage should be :
(a) Only class C amplifier
(b) Only harmonic generators
(c) Only linear amplifier
(d) Any of the above
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Analog and Digital Modulation » Exercise - 1 1. Which of the following modulating system is digital ? (a) PPM (b) PWM (c) PCM (d) PEM 2. In low level modulation system , the amplifiers following the modulated stage should be : (a) Only class C amplifier (b) Only harmonic generators (c) Only linear amplifier (d) Any of the above 3. In a low level amplitude modulation system, the amplifier following the modulated stage must be : (a) A class C amplifier (b) A linear device (c) A non-linear device (d) A harmonic device 4. PPM is : (a) Digital modulating technique (b) Analogue modulating technique (c) Linear modulating technique (d) Not a modulation technique