Terminology » Data Communication » Analog vs. Digital Transmission: Key Differences

Analog vs. Digital Transmission: Key Differences

analog digital transmission signal communication

This page explains the key differences between analog and digital transmission methods.

Analog Transmission

In analog transmission, data is sent in analog form. Analog signals or data are represented by sinusoidal waveforms.

  • Signal Type: Sinusoidal waveform.
  • Distance: Typically transmitted over longer distances compared to digital signals.
  • Amplification: Analog signals are passed through amplifiers to compensate for signal attenuation (weakening) that occurs as they travel through the transmission medium.

Digital Transmission

In digital transmission, data is sent in digital form. Digital signals are represented by digital pulses.

  • Signal Type: Digital pulses.
  • Attenuation Handling: Digital signals are amplified using repeaters. Repeaters regenerate the digital signal to overcome attenuation.