Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / ashwani pandey
Modulation is the process of changing the characterstic of
carrier signal
according to the modulating signal is known as MODULATION.
Demodulation is the process recovering the modulating
signal from the
modulated signal is known as DEMODULATION
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Why is 400 hz used for flight instruments and radio transmission system in aviation industry universally?
What are digital electronic flip flops, state the different types of flip flop and their uses?
Explain why making capacity of the circuit breaker is higher than breaking capacity?
What is meant by voltage regulation of a dc power supply?
why are u hiring electronics
What ODU work?
What are the main purposes for which a common-collector amplifier may be used?
What is full-adder?
what is amplifier?
hai iam venkat iam appering RRB exam chennai on 23 nov 2008. pls help me wat kind of questions i to prepare? mail {venkiremo_krv@yahoo.co.in]
What are the different operation regions of the thyristor (scr)?
List out some integrating type converters.
Define negative logic.
What is meant by D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? What do you mean by an ideal voltage source? What do you mean by zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain briefly. What do you mean by half-duplex and full-duplex communication? Explain briefly. Which range of signals are used for terrestrial transmission? What is the need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
Is it possible to calculate a voltage for microwave energy generating in oven? Is there any formula relating frequency and voltage and it should be independent of speed?
