List three gains or losses that could be modified (and how) to increase the signal-to-noise ratio in a communication signal.
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3.) List three gains or losses that could be modified (and how) to increase the signal-to-noise ratio in a communication signal.
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- Need it From block diagram to signal flow.3.) What is the meaning of the signal-to-noise ratio for a system, and why is it important?Which statement is true? a. In FSK, the modulating signal and the carrier signal are both analog b. In FSK, the modulating signal and the modulated signala re both digital c. In FSK, the modulating signal and the modulated signal are both analog d. In FSK, the carrier signal is analog and the modulating signal is digital
- 4. Signal conditioning element basically takes the output of the sensing element and converts it into a form more suitable for further processing, usually in the form of a DC voltage, DC current or variable frequency AC voltage. The output of the sensing element is usually too small to operate an indicator or a recorder. Therefore, it is suitably processed and modified in the signal conditioning element so as to obtain the output in the desired form that is amplify the signal and filtering the unwanted signal. i. Describe the aliasing phenomenon. ii. Suggest a solution to minimize the effect of aliasing.1)to VRMs value to generate a signal with a peak voltage of 10 V with a signal generator in a multisim program..................... must be entered. 2)) the frequency of the signal generator to produce a signal with a period of 10ms...................... must be entered as. What should come to the dotted line?7- When does over-modulation occur? a) Modulating signal voltage carrier voltage c) Modulating signal voltage = carrier voltage d) Modulating signal voltage = 0
- Q5/ The information in an analog waveform with maximum frequency fm transmitted over M-level PCM system where the number of quantization levels is M = 16. The quantization distortion is specified not to exceed 1% of peak-to-peak analog signal. = 3 KHz is to be i) What would be the maximum number of bits per sample that should be used in this PCM system? (ans,n = 4 bits) What is the minimum sampling rate and what is the resulting bit transmission rate? ii) (ans.r > 24 x 103 bits/sec)What is the minimum sampling rate needed in order to successfully capture frequencies up to 80MHz in an analog signal?1) For purposes of measuring length, the human torso was a convenient tool, and gave us units of---------? A) Meter. B) cm. C) foot. D) mm. 2)---------the output signal consists of a proportion of the external voltage source applied across the two ends of the potentiometer. A) Null-type, B) deflection-type ,C) passive instrument „D) active instrument. 3) The prerequisite for the reduction of systematic errors is a complete analysis of the----? A) Measurement system, B) systematic errors, C) System disturbance, D) Errors. 4) The extent to which series mode noise corrupts measurement signals is measured by a quantity known as--- A) noise ratio , B)Dual signal-to-noise ratio , C) A&B , D) signal-to-noise ratio . 5) Sometimes used to provide shielding from capacitive-coupled noise, but the necessary supports for the conduit provide multiple earth points and lead to the problem of-------? A) Shielding, B) Multiple earth, C) Earth loops, D) Noise.