what is the need for modulation?

Answer Posted / shweta

modulation is needed to transfer the signal from
transmitter to reciever. As the signal passes from
transmmiter to reciever there are many external effects
such as noise and other factors which can degrade the
signal so there is a need of modulation so that the signal
cant become so much week that it cant reach the reciever.
If the signal is sent without modulating then it will get
degraded due to external effects.

Is This Answer Correct ?    48 Yes 13 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A good op-amp has A Very high bandwidth B Narrow bandwidth C High selectivity D All of these

1527


What is the importance of valence shell and valence electrons?

628


what is an industrial electronics engineer ? what he does ? what specialities and experties he should have ? what are the difference between industrial electronics engineer & electronics engineer & electrical engineer ?

1661


why the exchang voltge is in minus polarty i.e -48 instead of +48

1581


what are differential gain and common-mode gain of a differential amplifier?

581






What is a varactor diode?

600


what is pla instruction

2728


please send me rrb gorakhpur je teli question paper

3353


what are the various modes of data transfer in 8085?

1631


how is one able to tell the unlock code for the mobile phone using the imei

1568


please define master-slave flip flop briefly.

1480


Hi; May you please tell me that There are any best institute or training center in north India region like as Delhi NCR for Protocol stack development & testing, which are better for experienced & professional engg.

1561


Is private consultancy involved in direct recruitment / interview process for field officer post in cabinet Secretariat posts

1037


If anybody have technical test papers for HPCL. Pls, mail me on akanksha417@yahoo.com.

1493


can a machine with a single DNS name have multiple IP address?how could this occur.

1747