The principles of Motorola Two Way Radio Motorola two way radio works almost like a cell phone that they are used as a method of communication between people in different locations, but there are some important differences between the two-way radio communication and telephone communication. The most striking difference between the two-way radio and telephone communication is that people talk about two way radios have to take turns talking - this is called the "half-duplex, Two Way Walkie Talkie, mode" of operation (telephone, where people can talk also make use of what is called full-duplex mode). There are two frequency bands in two-way radios to use for this are the Family Radio Service (FRS) band and the General Mobile Radio Service (GMRS) band.
The FRS band is specifically used for short range communication between two way radios - short range is defined as 2 miles or less. The GMRS band is used for two way radios that use a greater range in which the user may need surgery to eight miles from each other.Some two way radios are only able to use the FRS band, but nearly all Motorola two way radios the commercial benefit from both the FRS and GMRS bands.One important point about GMRS Operation: The FCC regulates two-way radios that operate on the GMRS band and users require this type of radio to obtain a license and pay a fee.
The GMRS license is good for five years and costs $ 80.00, the license must be obtained by an adult (the radios under the license can be used by minors, but only with the knowledge and consent of the licensed adult). Go to the website of the FCC's pages on: http://wireless.fcc.gov/services/index.htm?job=service_home&id=general_mobilefor more information about GMRS licensing.Channels!, Two Way Walkie Talkie, There are 22 channels on two way radios: channels 1 to 7 can be used by all two way radios or with the help of the FRS or GMRS group range, 8 to 14 channels are reserved for use by radio using the FRS band channels and 15 to 22 are reserved for use by radio, Two Way Walkie Talkie, using the GMRS band. How does this in practical terms is quite simple, in principle, all radios in two directions within eight miles of each set to the same channel to communicate with each other.
The catch is, anyone with a radio receiver to that frequency channel also will be able to hear what was said - so be careful what you say. To combat this problem, most Motorola two-way radios also equipped with "privacy codes." This privacy codes will break a single channel into several sub-channels that the radio gives users more privacy.