Analoogvideosignaalid

Analoogvideosignaalid, or analog video signals, are a type of signal used to transmit video information in its original, continuous form. Unlike digital signals, which are represented by discrete values, analog signals vary smoothly over time. This makes them highly susceptible to noise and interference, which can degrade the quality of the video.

Analog video signals are typically used in older television systems, such as NTSC, PAL, and SECAM, which were prevalent before the advent of digital television. These systems use a combination of amplitude and frequency modulation to encode the video information. The most common analog video signal format is the composite video signal, which combines the video, audio, and synchronization information into a single signal.

One of the main advantages of analog video signals is their simplicity and low cost. They require less complex equipment for transmission and reception compared to digital signals. However, their susceptibility to noise and interference has led to the development of digital video signals, which offer better quality and reliability.

In recent years, there has been a resurgence of interest in analog video signals, particularly in the field of retrocomputing and vintage electronics. This has led to the development of new analog video standards and equipment, such as the VGA and SVGA standards, which are still widely used in modern computers and displays.