What,Citizen,Band,radio,and,wh communication What is Citizen Band radio and what are Its Uses?
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CBstands for "Citizen's Band" radio. It got that name because its mainidea is to be a kind of radio service anyone can use. Depending on the countryyou live in, it is either a minimally-regulated or an unregulated set of radiochannels used for short-range (local) communications. Many people use CB radiosin their vehicles, homes or both.Citizen'sBand refers to a range of radio frequencies that lie between the short-wavebroadcast signals and the 10-meter Amateur radio bands. These frequencies aredivided into 40 channel starting from 26.965 MHz up to 27.405 MHz in 10 KHzsteps.CB(Citizens Band) Radio is an unlicensed service. Since the early 1980's, the FCCstopped requiring licenses for USA CB radio use. Users must still abide by allthe FCC rules regarding the CB Band, however. The maximum allowable power for aCB radio is 4 watts (mandated by FCC). Repeaters are not allowed on CB radio."SideBand" (SSB) is a mode capability found in higher-end CB Radios.You will have access to the Upper & Lower Sideband Modes (USB, LSB), oneach of the 40 channels, in addition to the "Regular" (AM) mode.If you want to talk farther with a more efficient signal, Single Side Band isthe way to go! You can usually expect an increase in range, & less noise onSSB, than on the "standard" AM 40 channels. FCC allows CB radios tohave 4 watts of AM power, but up to 12 watts of SSB power. Afew CB's may seem to claim 5, or even "7 watts of output" on the box.This is misleading, it actually refers to the Audio power sent to it's built inspeaker, "input" power, or some other nonsense that has nothing to dowith the actual transmit output to the antenna, which is still 4w or less inthat radio.]Acitizens band (CB) radio antenna is a device designed to do two things: Itcaptures radio-frequency signals that are then converted to electrical signalsby the receiver, and it takes electrical signals from the transmitter andconverts them into radio-frequency signals. This second function is wheretuning comes into play, because an antenna has to radiate radio-frequencysignals, something that's done best when the length of the antenna preciselymatches the wavelength of the transmitted radio frequency.Itis a radio system that is for the personal use of radio equipment. It is forlocal and national communications, and in some cases, internationally. It isnot intended for commercial use, some communities use it as local town securitywhere the police monitor a channel for citizen emergency calls. Some countries restrict communicationdistance by law!The CB Radio Service has proven useful indisaster situations, both small-scale (for example, for a stranded motorist)and large-scale (such as after a hurricane or during a flash flood). Anorganization of expert communicators known as the Radio Emergency AssociatedCommunications Teams (REACT) provides communications support in emergencysituations. Channel 9 (at 27.065 MHz) is monitored by members of REACT, and isrecognized as the CB emergency channel in the United States.
What,Citizen,Band,radio,and,wh