What is the need for modulation?

• 1.multiplexing
  2.fruitful transmission of information.
  3.for reduced antenna length.
  
• 10 years agoHelpfull: Yes(10) No(0)
• To transmit the low freq. for far distance using high freq.carrier signal
• 9 years agoHelpfull: Yes(3) No(0)
• it is needed for transmitting baseband signal,reduce the antenna height and to avoid distortion amongs same frequency signals
• 10 years agoHelpfull: Yes(2) No(0)
• to improve the strength of message signal by adding carrier so that we can prevent any attenuation even for long distances also...
• 9 years agoHelpfull: Yes(1) No(0)
• to tramsmit low frequency signals over a large distances
  
• 8 years agoHelpfull: Yes(0) No(0)