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Q. What do you mean by Companding?
In order to lower the crest factor of a waveform, so as to produce better performance, a process known as companding is used. It works like a compressor which progressively compresses the larger amplitudes of a message when it is passed through a nonlinear network. The inverse operation in the receiver is known as an expandor, when it restores the original message. Figure 15.3.4 illustrates a typical set of input-output characteristics for a formof compandor.One can see that the action of the compressor is to increase the rms-signal value for a given peak magnitude.
Q. Explain shockly's equation and its significance in plotting the transfer characteristics ? The linear relationship does not exists in the output of the JFET, the relationshi
Hydraulic analogy
Q. Assuming the diode to obey I = IS (e V/0.026 -1), calculate the ratio V/I for an ideal diode with I S = 10 -13 A for the applied voltages of -2,-0.5, 0.3, 0.5, 0.7, 1.0, and
One battery having of four cells, connected in series. Emf of each cell is 1.45V and internal resistance of 0.04Ω. if a load resistance of 5Ω is connected to the battery, draw the
Antenna Fundamentals We shall discuss here only the fundamental concepts needed to understand the role of an antenna as a power-coupling element of a system. Figure illustrates
Explain the Synchronous Up-Down Counters? The circuit of a 3-bit synchronous up-down counter and a table of its sequence are shown below. Alike to an asynchronous up-down count
Development tool for SDR i.e software defined radio
Task a) Investigate and describe the significance of the following: i. Slenderness ratio and buckling in columns ii. Effective length of columns b) Explain Eu
How many machine cycles does 8085 have, mention them The 8085 have seven machine cycles. They are Opcode fetch Memory read Memory write I/O read I/O
Earthing : Any electrical appliance with a metal casing or with metal parts, likely to be touched by an operator is potentially dangerous. The danger is that an internal or extern
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