BasebandWith, digital data, digital modulation voltage・ electric current・ magnetic force・ light.

Broadband comparison

Digital modulation was used broadband.

  • Circuit scale is small.
  • Wire of wide band transmission line is necessary, radio communication is impossible.
  • In case of those which use the copper wire, unnecessary emission is large.


To be old, short range wire telegraph. In addition, electronic medium it is used.

digital signal

  • computer bus
  • ethernet
  • Serial interface : RS-232C-RS-422-RS-485-MIDI
  • Parallel interface: SCSI、ATA

electronic medium

  • optical disk : CD-DVD-Blu-ray Disc-HD DVD-SACD-UMD

Related item

  • baseband transmission : Summary and ripple mark of system
  • digital circuit : logic circuit voltage level
  • ???? : Antonym


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