| There are many different services offered in two | | | | accidents. |
| way radio communications. Each service has its own | | | | In the ultra high frequency band a particular range of |
| purpose. Among the basic two way communication | | | | frequency has been authorized for citizens band |
| services are Citizens band radio operators, Amateur | | | | voice and control signals. |
| radio, Aeronautical radio and the general mobile radio | | | | Individual operators of citizens band equipment need |
| service. In the private land mobile radio services public | | | | not be licensed but the transmitting equipment is |
| safety radio, special emergency radio and industrial | | | | licensed through the manufactures authorization. |
| radio are included. The citizens band radio operates at | | | | The citizens band operation requires the transmitter |
| specific Megahertz, amplitude modulated or single | | | | and the receiver\ to be on the same channel and |
| sideband using shared assigned channels. The Citizens | | | | operators generally use a code. This code with some |
| radio service more commonly called citizens band is a | | | | modifications is also used by police and fire |
| public non commercial radio service available to the | | | | departments. |
| general population. | | | | Amateur radio operator is a duly person interested in |
| There are four classes of citizens band radio viz. | | | | radio techniques with a personal aim and without |
| Class A to Class D stations respectively. | | | | financial interest. There are thousands of these |
| Citizens band offers a convenient communication | | | | operators in the world. These operators converse |
| system that can be used at home, in a car, in a boat, | | | | over distances limited only by the size of the earth |
| or on an airplane, or even while walking or hiking. | | | | and by the power of their stations. |
| Specific ranges of frequencies are used for radio | | | | The aeronautical Broadcasting Service disseminates |
| control of aircraft, model boats and garage door | | | | information for the purpose of air navigation and |
| openers. A particular channel is set aside for | | | | communication. |
| emergency communications, such as after highway | | | | |