Image for analog television

analog television

Analog television transmits video and audio signals as continuous electrical waves, carrying the picture and sound information over radio frequency channels. The image is encoded in varying voltage levels representing different shades of gray or color, and the audio as modulated signals. This method allows real-time transmission of broadcast content. Analog signals can be affected by interference, which can cause picture distortion or noise. Compared to digital TV, analog offers lower picture quality and less resilience to signal degradation. Most regions have transitioned to digital broadcasting for better picture quality, more channels, and efficient spectrum use.