With so much information on the internet about 2 way radio jaycar’s it is hard to discover the best and most honest information. here is a piece from a good site that i believe to be accurate, don’t quote me on it but please read and enjoy
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 2 Way 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. These radios cannot operate very effectively when there is an obstruction or the terrain is not plain. These types of radios cannot work well in mountains. The family radio service radios are very affordable as they mainly cater to the needs of the families. They also have features best suited for personal needs.
The general mobile radio service radios are fast replacing the family radio service. One of the main reasons for this is the fact that the general mobile radio service radios can be effectively used for communication over long ranges. These can operate within a range of 20 miles. These radios also operate the best when there are no obstructions and the terrain is plain. These two way radios cannot be efficiently used in hilly areas. These radios are very powerful and are best suited for use in military organizations. These types of radios are expensive and a user also requires a license to operate these radios.
These radios come with a lot of features. Most of these radios these days have a feature that tells about the weather. These also have features that can be used for navigation purposes. These 2 way radios are generally hand held and easy and convenient to use and operate.