basebandvälityksestä

Baseband transmission is a method of sending signals without modulating them onto a carrier wave. In baseband transmission, the signal's frequency range is directly transmitted over the communication medium. This means the signal occupies the lower portion of the available frequency spectrum. Common examples include digital signals used in Ethernet networks and direct analog signals for short-distance communication.

The primary advantage of baseband transmission is its simplicity and cost-effectiveness for shorter distances. It requires less complex circuitry compared to broadband transmission, which involves modulation and demodulation. However, baseband signals are susceptible to attenuation and noise over longer distances, limiting their effective range. Therefore, repeaters or amplifiers are often needed to boost the signal strength for extended transmission.

Baseband transmission is typically characterized by a single channel occupying the entire bandwidth of the transmission medium. This means that multiple signals cannot be transmitted simultaneously over the same medium using this method without some form of multiplexing, which is often achieved at higher layers of the communication stack. The choice between baseband and broadband transmission depends heavily on the application's requirements regarding distance, bandwidth, and complexity.