![]() ![]() Commercial applications usually require frequent use of channels with minimal interference by outsiders.Itinerant License - Allows the use of radios at temporary locations within a state, set of states, or nation-wide.Duplex License - When using a repeater this license includes a frequency pair, spaced for repeater use. ![]() Simplex License - Licenses a set of frequencies within a radius of a specified location.There are several different types of LMR licenses.Once obtained, the license is good for 10 years.Most radios approved for LMR usage operate on either VHF (150-174 MHz), or UHF (421-512 MHz) frequencies.LMR is for use in business, government agencies, and non-profit institutions such as education, healthcare, and religous organizations.LMR (Land Mobile Radio), also PLMR for Private Land Mobile Radio, or Industrial/Business Pool Service bands such as public safety, military, or commercial broadcast, or others are not listed here. Only service bands available to members of the general public are listed. The sections below outline the main features of each service band. The business pool of frequencies is only open to businesses or philanthropic organizations such as a schools, churches, or medical facilities. Other pools are very restrictive such as public safety or military. Some pools are open to everyone with no license requirement such as MURS, CB, or FRS. GMRS licensing requirements are simple fill out a form and pay online. The GMRS service band is open to almost anyone but does require a license. In addition, each pool also has it's own licensing requirements. Other service bands have only one type of frequency, such as GMRS has UHF only frequencies, or MURS has VHF only frequencies. For example, the business pool has HF, VHF, UHF, and 900Mz frequencies within its pool. Some pools, or service bands, contain a range of different frequency types such as HF, VHF, UHF, 700Mz, 800Mz, 900Mz, etc. Frequencies are not assigned to more than one pool. ![]() So, for example a frequency assigned to the public safety pool, will not be available to the business pool, or any other pool for that matter. Each pool is assigned a purpose such as public safety, business, marine, aviation, amateur, commercial broadcast stations, etc. The FCC has divided the frequency spectrum into pools called Services or Bands. ![]()
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