GMRS, also known as General Mobile Radio Service, refers to a communication service established in the United States that allows individuals and businesses to utilize two-way radios for both personal and business purposes. GMRS operates on frequencies between 462 and 467 megahertz (MHz) and is primarily utilized for short-range communication within a specific area. It is authorized by the Federal Communications Commission (FCC) and is considered a licensed radio service.
GMRS provides shared channels for individuals and families, serving as an effective means of communication over relatively short distances. The range of GMRS radios typically reaches up to several miles, although the actual range depends on various factors, including terrain and the specific radio device used. The service allows for both simplex communication (one person transmitting at a time) and repeater usage, which extends the range of transmission through the use of specialized relay systems.
To operate GMRS radios, individuals must obtain a GMRS license, which can be acquired for a nominal fee. This license allows users to operate on designated GMRS channels and enjoy increased power output compared to other unlicensed radio services. It is essential to note that GMRS shares significant frequency bands with other services, such as Family Radio Service (FRS), but GMRS radios typically have more channels and higher power capabilities. Additionally, GMRS radios may also have the capability to operate on FRS channels, allowing interoperability between the two services.
Overall, GMRS serves as an accessible and reliable communication service that enables short-range wireless communication between individuals, families, and businesses, making it a valuable tool for recreational activities, emergency preparedness, and professional uses.
