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Can we send a digital signal into the air with out
modulation? if NO or YES, please give me a answer.
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Answer Posted / nirmal
yes , digital signal can send in air with out modulation .
but it is for very small distance . (baseband modulation ).
to increase the distance to be covered , power of
transmitters should be very high .
digital signal is always a pcm signal so it is already
modulated. but no avialability of carrier it is used for
wired communication . for larger distance digital
modulation is used. so digital modulation is called double
modulation.
| Is This Answer Correct ? | 7 Yes | 5 No |
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