The "S Band" refers to a specific range of radio frequencies in the electromagnetic spectrum, typically from 2 to 4 gigahertz (GHz). It is commonly used for various applications, including satellite communications, weather radar, and some types of wireless networks. The S Band is favored for its ability to penetrate through rain and other atmospheric conditions, making it effective for radar systems. In addition to its use in radar and communications, the S Band is also utilized in certain types of cellular networks and Wi-Fi technologies. Its frequency range allows for a balance between coverage and data transmission speed, making it suitable for both commercial and military applications.