A two way radio is also known as a transceiver. These radios are used for both for sending and receiving data or signals. These radios can either work on analog technology or a digital technology. When analog technology is used in these radios, the transmission can be done clearly even for very weak signals. However, in analog technology, only one thing can be done at any given time i.e. data can either be vent or received. When digital technology is used, data can be sent and received simultaneously and also more data can be sent.
Two way radios come in two styles. These are duplex and simplex styles. In the simplex radio, only one channel can be used at any instance of time. This means that only one person can send data at a time. The most popular type of a simplex radio is the walkie talkie. The duplex radio is the one in which different channels are used for transmission of data. This means that any given time, the use can both send and receive data but using two different channels.
The two way radios are generally of two types. These are Family Radio service, FRS, and General Mobile Radio service, GMRS. The family radio service is mainly used as a personal radio that facilitates two way communications. The range within which these radios can operate is two miles. These two way radios operate on very low frequencies that allow people in close proximity to communicate with each other. These radios are not suitable for a long range communication. These radios also have special bands on which they operate and are not so powerful that they can be used on a daily basis. In addition, these radios operate the best in a line of sight.
Article Source: http://EzineArticles.com/2742593