Land Mobile Radio (LMR) refers to a communication system that enables two-way radio communication between mobile units, such as vehicles or handheld devices, and fixed base stations. It is commonly used by public safety organizations, such as police and fire departments, as well as in industries like transportation and construction for reliable and instant communication. LMR systems operate on specific radio frequencies and can be analog or digital. They provide features like group calling, emergency alerts, and secure communications. The technology is essential for coordinating operations and ensuring safety in various fields, making it a vital tool for effective communication.