1. Through the Federal Communications Commission (FCC). The FCC is the agency that regulates radio communications in the United States, and it is responsible for allocating trunked radio frequencies. To obtain a trunked radio frequency, you can file an application with the FCC. The application fee is $350, and the process can take up to several years.
2. From a private company. There are a number of private companies that offer trunked radio services. These companies typically lease their trunked radio frequencies to businesses and other organizations. The cost of these services can vary depending on the provider and the features you need.
3. Through a trunked radio system operator. Trunked radio system operators are responsible for maintaining and operating trunked radio systems. They typically lease their frequencies to businesses and other organizations, and they may also provide other services, such as maintenance and repairs.
Once you have obtained a trunked radio frequency, you will need to purchase a trunked radio and have it programmed with the correct frequency. You may also need to install an antenna in order to use your trunked radio.