Cb Radio Frequencies
All about CB Radio Frequencies: How they work, What they are
For those who are CB radio enthusiasts, knowing CB radio frequencies is a must. These aren't just random numbers; they are signposts and keys to being able to communicate with someone miles and miles away over your radio. CB radio frequencies can seem confusing, but this article will help to explain the science behind how they operate - and which CB radio frequencies you may want to use for yourself.
How Radio works
CB radios operate off of - you guessed it! - radio energy, which is still one of the main means of short and long-distance communication used in the world. Wireless radio was started in the late 19th century by an Italian inventor named Guglielmo Marconi, who invented the first radio telegraph system in the 1880's.
Marconi's telegraph system - and indeed every other radio system today, including radar - uses radio waves that are a part of the electromagnetic spectrum. Certain objects put out electromagnetic radiation, which can be used for communication (among other things). Radio waves are formed when antennae put out signals with electricity that can be captured and translated by receivers. This is the basic way that radio works.
How CB Radio Frequencies work
A CB radio frequency is basically a way that you can tune into a specific slice of the EM spectrum. It all depends on the frequency, or, the number of cycles in a wave over a given period of time. All a CB radio enthusiast needs to know is that there are many different frequencies that form a channel by which two people can communicate.
A radio station, for example, broadcasts at a given frequency. You have to have your radio tuned to, say, 98.1 in order to hear the station at 98.1. A CB radio frequency is the exact same. It is basically a way that you can find someone and have them find you so you can talk (or listen to music, etc.).
CB Radio Frequencies in the U.S.
Most countries allocate frequencies to specific channels for specific purposes. Since the EM spectrum is real and is limited, there is only so much space that can be used before people start interfering with each others' signals. In the United States, the Federal Communications Commission has created 40 channels for CB radio use, essentially establishing a way that short-range radios (such as a CB radio) can operate without interfering with other types of radio transmission.
Now you can see how CB radio frequencies work and operate in the U.S. The next time you want to use your CB radio to talk, just consult this chart of CB radio frequencies.