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Which type of modulation is used in TV transmission?
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Answer / amit thakur02
in tv tranmission we have two type of modulation is used AM ,FM
A.M.:-used for the vedios
F.M:-used for the audio
| Is This Answer Correct ? | 16 Yes | 1 No |
Answer / sachin dohre
IN TV signal Transmission a technique is employed called
as vestigal sideband technique.
Such technique limits the band to 7mhz per television
channel that could be 11.25mhz since video info. has 5mhz
band and requires 5 x 2= 10mhz + .5(freqency rolloff
response of filter per side band,here usb) + .5 (lsb) + .25
(guard band for sound carrier) = 11.25 mhz for its
transmission. Since usb and lsb are replica of each other
having same variation in their band with the change in
modulating video signal we could remove one of the band
partially. This partial removal technique is what we
called vestigal sideband technique (VSB)
thank you!!
| Is This Answer Correct ? | 17 Yes | 3 No |
Answer / e.john ebinezar
in TV transmission for audio signal FM modulation is used
and for video AM modulation is used and also the VSB for AM
in this method we know about AM in this two side bands and
carried also in this only one side band fully and other half
part of other side band
| Is This Answer Correct ? | 16 Yes | 3 No |
Answer / amber kashiv
Vestigile side band amplitude modulation..
latest technique of AM than DSB or SSB.
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / rehan
two types of modulations are used(1)amplitude
modulation(AM)for video(2)frequency modulation(FM) for audio.
| Is This Answer Correct ? | 11 Yes | 2 No |
Answer / akshay
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 ? | 11 Yes | 4 No |
Answer / aji
Negative modulation is used for picture transmission
| Is This Answer Correct ? | 7 Yes | 1 No |
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