Radio communication is "a telecommunication by means of radio waves ", under which radio waves, the frequency range is to be understood to 3000 GHz. Worldwide the range of 9 kHz to 275 GHz by the Radio Regulations Radio Regulations of the International Telecommunication Union ( ITU) is regulated and assigned to wireless services.
Public radio traffic
Public radio traffic is the traffic of a radio station, which is the public under the conditions of use without limitation to exchange messages available, such as broadcasting.
The traffic of a radio station, its use depends on by the general public to exchange messages of the instructions of the responsible for the supervision of the radio station people, is considered limited public radio communications.
Non- Public radio traffic
Non- Public radio traffic is the traffic of a radio station that is not available to the general public for the exchange of messages. These include for example:
- Operating ship radio traffic that is only permitted for the exchange of messages concerning ship operation.
- Official radio traffic that is only permitted for the official exchange of messages between stations by authorities.
- Military radio communications, which is only approved for the exchange of messages which relate to the armed forces.