why AM is used for video and
FM is used for audio in tv.
pl help!!!!!!!!

Answer Posted / ashutos mohanty

Bandwidth in AM is 2fm and that in FM is 2(fm + dF) dF is
very large. As video signal itself has a large Bandwidth If
we go for FM It will take very high Bandwidth. So with a
limited bandwidth channel We will be able to transmit very
few Video channels. Hence We use AM.

But noise reduction is better in FM. As Audio signal has
very less bandwidth we can afford to use FM and have Audio
signals with less noise.

Is This Answer Correct ?    58 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to fall in love?

1993


State the different types of flip flop?

558


Explain what are the basic logic elements?

654


what is the difference between DVB-S& DVB-S2

1367


What are the operation of igbt?

586






what is BIAS current/ voltage?

4997


Mention some typical applications of pll?

571


What is the difference between dcs & plc & scada?

626


Define noise in modulation?

568


The output of an AM detector goes directly to the A IF amplifier B Mixer C Audio Amplifier D Loudspeaker

1494


which is the syllabus of the ongc next month exam pls send me on my mail id..

1595


hi .. i have done my b.e in under electronics and communication engineering and now i have opted for computer engineering which has most of communication related subjects. still what should i answer, if i am been asked "why didnt yu opt for electrical engineering"

1169


What is used for high speed reading and storing of information in a computer?

561


Define amplitude modulation?

562


What is the conductivity of perfect dielectric?

687