Bærebølgesignal

Bærebølgesignal is a Danish term that translates to "carrier wave signal" or "modulated signal." It refers to a type of signal used in telecommunications and broadcasting where information is transmitted by altering a high-frequency electromagnetic wave, known as the carrier wave. This process is called modulation.

The carrier wave itself typically has a constant frequency and amplitude. Information, such as audio, video, or data, is encoded onto this carrier wave by changing one or more of its properties. Common modulation techniques include Amplitude Modulation (AM), where the amplitude of the carrier wave is varied in accordance with the information signal, and Frequency Modulation (FM), where the frequency of the carrier wave is varied.

Bærebølgesignaler are fundamental to radio and television broadcasting, wireless communication systems like Wi-Fi and mobile phones, and many other electronic systems. By using a carrier wave, it's possible to transmit information over long distances and across a wide range of frequencies, allowing for efficient use of the electromagnetic spectrum. The receiver then demodulates the signal, extracting the original information from the altered carrier wave.