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
Related Posts
Analog and Digital Modulation » Exercise - 1 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- 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
- Analog and Digital Modulation » Exercise - 1 4. PPM is : (a) Digital modulating technique (b) Analogue modulating technique (c) Linear modulating technique (d) Not a modulation technique
- Analog Pulse Modulation » Exercise - 16. Which of the following modulating system is inherently most noise-resistant ? (a) PCM (b) PPM (c) FM (d) DSB
- Amplitude Modulation » Exercise - 1 11. In an AM transmitter after the modulation stage class C amplifier : (a) Can be used (b) Can not be used (c) Either of the above (d) Both a and b