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Q1. | Which one of the following is not necessarily an advantage of the phase cancellation method of obtaining SSB over the filter method? |

A. | It is possible to generate SSB at any frequency [Wrong Answer] |

B. | SSB with lower audio frequencies present can be generated [Wrong Answer] |

C. | Switching from one sideband to other is simpler [Wrong Answer] |

D. | There are more balanced modulators; therefore the carrier is suppressed better [Correct Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ For an insulating material, dielectric strength and dielectric losses should be

high and high

low and high

high and low

low and low

⇒ Conductivity is measured in terms of

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ohm/metre

mho/metre

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ohm/metre

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⇒ A 1000

*k*H

*z*carrier wave modulated 40% at 4000 H

*z*is applied to a resonant circuit tuned to a carrier frequency and having

*Q*= 140. What is the degree of modulation after passing the wave through this circuit?

0.4

0.2

0.27

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⇒ Consider the following statements as regards BPSK and QPSK:

- In BPSK we deal individually with each bit of duration T
_{b} - In QPSK we lump two bits to form a symbol
- In both BPSK and QPSK signal changes occur at bit rate
- In QPSK the symbol can have any one of four possible values

1, 2, 3, 4

1, 2, 3

1, 2, 4

2, 3, 4

⇒ At room temperature, a possible value for the mobility of electrons in the inversion layer of a silicon

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450 cm

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1350 cm

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1800 cm

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3600 cm

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⇒ In a waveguide if TE mode exist for

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E

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⇒ In fabricating silicon BJT in ICs by the epitaxial process, the number of diffusions used is usually

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⇒ In a two stage CE amplifier circuit, the ac collector resistance of the first stage depends on

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input impedance of second stage

all of the above

⇒ A transmitter serial current contains

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audio frequencies

radio frequencies

none of the above

⇒ The coding system generally used in digital telemetry is

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⇒ In figure, the steady state current through 1H inductanc

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0.125

0.208333333333333

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⇒ The leads in a TRIAC are denoted by

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T

_{1}T

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_{1}, T

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T

_{1}, T

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_{3}

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_{eq}if each L is

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1/3 H

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a family of straight lines

either (a) or (b)

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six times output frequency

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⇒ Which of the following is true as regards telephone systems?

A larger facility carrying a larger load operates less efficiently than a smaller capacity

A larger facility carrying a lesser load operates more efficiently than a smaller capacity

A larger facility carrying a larger load operates more efficiently than a smaller capacity

A smaller capacity carrying a larger load operates more efficiently than a larger capacity

⇒ Consider the following statements:

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(I) and (III)

(I) and (IV)

(II) and (III)

(II) and (IV)

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⇒ The amplifier network is shown bel

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⇒ A noiseless 3 kHz channel can't transmit binary bit at the rate

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3000 bps

⇒ The depth of penetration at 4 MHz is 10 cm, then at 2.5 MHz it is

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⇒ In the above case the hexadecimal notation for the last memory location is

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N/2

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⇒ When a circuit is excited by ac sinusoidal source, the admittance is obtained by letting

*s*=

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TRUE

FALSE

⇒ In Pascal if I = 45, I div 10 * 10 =

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⇒ For a 16 bit computer the range of integer constants in C is

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⇒ In figure, V

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