Answer / raj

1.Antenna required to transmit human voice will need veru
long Antennas about 1 Km long Antenna.
2. If every body speaks at the same time, intereferance
will occur.

Answer / lakkup

for security purpose, to protect from noise,distortions
etc., modulation is used
so in order to transmit a signal ,modulation is done by
superimposing carrier signal on to the message signal
so when it is transmitted over the channel ,modulation
serves as a protective covering for the message signal.so at
the receiver side it is then demodulated to get the original
signal

Answer / r.venkateshwaran

It is used to combine the carrier signal and the modulating
signal....

why the pic micro controller have internal eeprom?But in 8051 have only rom and ram.

0 Answers  

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in mosfet we have different types like enhancement and depletion.but why do we preffer enhancement over dpletion

4 Answers   Qualcomm,

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what are the differences between dcs & plc & scada?

0 Answers  

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explain double side band and double side band -substrace carrier

0 Answers  

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master slave flipflop stores how many bits at any instant?

1 Answers   Ecil,

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what is an integrator?

0 Answers  

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Define various modes of operation of timer.

0 Answers  

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why nand-nand realization is preferred over and-or realization?

0 Answers  

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what is the exact difference between zener breakdown voltage and avalanche voltage??

3 Answers   TCS,

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8085 microprocessor number of bit

2 Answers  

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Frequency response of integrator is same as that of a. high pass filter b. low pass filter c. band pass filter d. band reject filter

5 Answers  

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what is am transceiver.

0 Answers  

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