What is pulse transmission?

What is pulse transmission?

• A. A rapid change from low to high voltage and back.
• B. A slow, gradual voltage change.
• C. A constant voltage level.
• D. A steady alternating waveform.

Answer: (A)

Pulse transmission is about sending information with short, sharp transitions in the signal. A pulse is a quick jump from a low level to a high level and then back to the low level, all happening in a brief time. This rapid edge carries data, often with the presence, absence, or timing of pulses encoding bits. In a 4–20 mA loop, this idea means digital data can be transmitted as bursts or trains of sharp pulses superimposed on the analog current, rather than a slow, gradual change or a steady waveform. So the defining feature is the quick rise and fall—the impulse or spike—that conveys the information.

Pulse transmission is about sending information with short, sharp transitions in the signal. A pulse is a quick jump from a low level to a high level and then back to the low level, all happening in a brief time. This rapid edge carries data, often with the presence, absence, or timing of pulses encoding bits. In a 4–20 mA loop, this idea means digital data can be transmitted as bursts or trains of sharp pulses superimposed on the analog current, rather than a slow, gradual change or a steady waveform. So the defining feature is the quick rise and fall—the impulse or spike—that conveys the information.