For TV transimission in india we use AM for video and FM for audio. why like t

For TV transimission in india we use AM for video and FM
for audio. why like this? can we use opposite way?

Question Posted / allanki sr

4 Answers
14450 Views
Sony, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

For TV transimission in india we use AM for video and FM for audio. why like this? can we use oppo..

Answer / j.mohamed sadique basha

fm is used for audio and am is used for video we cannot
change that.. reason behind that is for example voice of
human being differ from person to person ...so that we need
tecnology with constant amplitude and variable frequency tha
is principle of fm...
am is used for video because picture size is decided using
frames and number of scannig lines...for example there are
different size of tv like 21 inch,10 inch...in 10 inch tv we
are seeing the same picture but in small size..so that we
need technology with variable amplitude and constant
frequency that is am...
best of luck..

Is This Answer Correct ?

45 Yes

13 No

For TV transimission in india we use AM for video and FM for audio. why like this? can we use oppo..

Answer / abhyarthana

One reason to use am for video and fm for sound is noise. As noise signals are voltages that are added in the information signal, they can change amplitude but cannot change the frequency of the signal. In fm if noise is added, it doesn't change the data since the information is contained in frequency variation. this ensure a good quality of audio signal, when demodulated.

Another important reason is the bandwidth requirement. Video signals have much higher b/w than audio signals. Fm cannot provide this much b/w to signal. Thus AM is suitable for video signal.

Is This Answer Correct ?

9 Yes

0 No

For TV transimission in india we use AM for video and FM for audio. why like this? can we use oppo..

Answer / durgak

AM can also be used for audio but since AM is more noisey
than FM, so FM is generaly used for audio.but in video
transmission, noise doesn't have much impact on video,also
cost implication is justified,since FM transmission is
costlier than AM transmission.

Is This Answer Correct ?

10 Yes

5 No

For TV transimission in india we use AM for video and FM for audio. why like this? can we use oppo..

Answer / balajideee

we can use AM for both video and audio.. But is only for
FM is onlt for audio.....

Is This Answer Correct ?

8 Yes

16 No

Post New Answer

More Electronics Communications Interview Questions

What is a bcd? What are its advantages and disadvantages? Why is an excess-3 code is called an unweighted code?

0 Answers

How can the race-around problem be solved?

0 Answers

What is the distance from an RF Transmitter that output power is determined?

0 Answers

sir i preparing J.E railway exam..so pl.send me solved paper.J.E...TELECOM ,SIGNAL,

0 Answers

why dose response of a phototransistor depent upon the wave length of the incident light?

0 Answers

i want last 5 yrs Q papers of rrb(any) send me at puneetchauhan_8782@yahoo.co.in

0 Answers RRB,

in ne555 ic timer circuit ne refers what?

3 Answers Infosys,

What is the zener breakdown?

0 Answers

How the GATE rank calculated?and whats the importance of GATE SCORE?And how it calculated?

0 Answers

Loop check when we do ???before solo run test or dis two activities not related .plz explain me

0 Answers NCC,

What is the speed of signal in optical fiber ??

3 Answers

What is the use of radar?

0 Answers

For more Electronics Communications Interview Questions Click Here