Mobile two way radios are a convenient and relatively cheap means of communication. Two way radios are transceivers – that means they can both receive and transmit messages simultaneously. They are unlike broadcast receivers (such as the ordinary radio) which only receive messages or signals. A good example of the 2 main way radio concept is the mobile phone and the hand held radio referred to as the walkie talkie. There are different categories of mobile motorola two way radios and each has its benefits along with the circumstances for which it is most suitable.
The conventional portable two means radios operate on a fixed RF (radio frequency) channel. Perhaps where a two way radio has the ability to tune into a couple of channel, the user is required to select only one since the radio can simply operate on a single channel at a time. Radios with multiple approach capability have a button or a channel selector as part of all their control panel. Often , the frequency regulator responsible for a certain place will allocate different channels to different organizations. For instance, just one channel can be assigned to a cab company in order to accomplish communication between the dispatcher and the taxi drivers.
A trunked radio is another type of portable two way radio — it uses a set of pre defined rules to easily pick the radio frequency channel on its own. Digital versions with the trunked radio have the ability to multiplex – in other words, they can cope with multiple conversations using the same frequency channel.
The other style of portable two way radio is the duplex radio. It could possibly transmit and receive messages on different frequency avenues. Equipment used for communication in a duplex system can only feature where there is certain core infrastructure such as a repeater and a basic station. The base station is used to re-transmit the impulses received from one portable radio to the others as long as equally radios are within the range of the base station’s signal arrive at.
There are three types of duplex system radios – the half duplex that requires the user to press a generate button before relaying a message, the full duplex which can at the same time receive and transmit signals and the hybrid duplex which will applies both the half and full duplex systems. The luxury of this type of radio is its ability to extend the physical area within which communication takes place between the end users.
A different classification of portable two way radios is the advertising agency radio and the digital radio. The analogue includes the actual AM radios used in aircraft and the walkie talkie. It has the advantage is that, in areas with weak signals very low better ability to communicate (but only as long as good quality equipment is used). The digital radios include the standard safety radio stations. This portable two way radio allows simultaneous transmission between multiple users and can also send non tone data such as a text message.