difference between amplitude modulation and frequency
modulation
Answer Posted / sanjay kanzariya
In case of Amplitude modulation amplitude of the modulating(information) signal is varies according to carrier(high frequency) signal .
In case of frequency modulation frequency of the modulating(information) signal is varies according to carrier (high frequency) signal .
| Is This Answer Correct ? | 12 Yes | 7 No |
Post New Answer View All Answers
plz send me any one gate papers
Why value of rx level is always negative?
How to know the Signaling Link Utilization for a MTP3B link which carries RANAP?
how IDP Qury perform by the B subs MSC for MTC call. If subscriber is in roaming in other state? plz explain briefly
Which frequency would a frequency-counter count , if it is connected to an antenna that is recieving several frequencies close to each other in amplitude?
what type of waves exactly the radiations are ?
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?
What is the importance of peak inverse voltage?
What are the advantages of current commuted chopper?
What are the advantages of parallel optical interface?
WHEN +VE VOLTAGE ON THE GATE P-CHANNEL JFET IS INCRESED DRAN CRICUT WILL BE WHAT CONDITION
Define what is photodiode?
Example for negative feedback and positive feedback.
at the time of doing second year which course can we study..? and where we should study...?
Define why series inductor and l-section filters cannot be used with half-wave rectifiers?