A "Signal Test" is a procedure used to evaluate the quality and strength of a communication signal, such as those used in telecommunications or broadcasting. This test helps identify issues like interference, weak signals, or connectivity problems, ensuring that devices can transmit and receive data effectively. During a Signal Test, various tools and equipment measure parameters like signal strength, noise levels, and frequency response. The results guide technicians in optimizing systems, improving performance, and ensuring reliable communication for users of mobile networks, Wi-Fi, or radio frequencies.