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(a) Which one of the four digital-to-analog conversion techniques (ASK, FSK, PSK or QAM) is most susceptible to noise? Explain your answer.
(b) Given the bit pattern 01001110, sketch the waveforms for NRZ-L, Bipolar AMI, Pseudoternary, Manchester and Differential Manchester encoding. Assume that the most recent preceding 1 bit for AMI has a negative voltage and the most recent preceding 0 bit for Pseudoternary has a negative voltage.
(c) PCM is based on the Nyquist Sampling theorem.
(i) State the Nyquist Sampling theorem.
(ii) A complex low pass signal has bandwidth of 200 kHz. What is the minimum sampling rate for this signal?
(d) What is the maximum data rate for a voice-grade line with a bandwidth of 4 kHz and a S/N ratio of 10000 to 1? Also, what is the maximum data rate if the S/N ratio is now enhanced to 50 dB?
power absorbed by each element
Software/Application Platform Requirement: GIS solutions would primarily consist of Database and Applications software. The application package should work in LAN/WAN/Interne
show the decoding logic for 11011 code if an active high and an active low output required
TRAPS: Give a perfect 10, and you'll seem too simple to please. Give anything less than a perfect 10, and he could press you as to where you're being significant, and that road lea
following on from the first tma in this module, produce a design report for one design of the product based on one of the scenarios covered on the following pages.
what are the limitations of superposition theroem
Clipper Circuits: Clipper circuit have ability to Clipper of portions of the input signals without distorting the remaining part of the alternating wave form. Clamper net
Q. If a single phase motor fails to run or start slow what action to be taken. Ans: If it is not starting check the supply and test the winding if it found normal check
how much and what to write it is of 30 marks
Commercial television broadcasting is allocated frequencies that fall in the VHF and UHF bands. Table lists the television channel allocations in the United States, with the channe
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