In A Coaxial Cabling, What Does The Rg Rating Measure?
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In A Coaxial Cabling, What Does the Rg Rating Measure?
Answer:
In a coaxial cable, Rg rating material is used to shield and conduct the cores.
Coaxial cable:
It is an electrical cable made up of inner conduct that is surrounded by a dense conducting shield these two are far apart by an insulating material called a dielectric. Most of the coaxial cables have a protective sheet or jacket. It is a transmission line carrying an electrical signal of high frequency with minimum loss. Applications of coaxial cable are high-speed computers data, television signals, and connected radio and receiver-transmitter to antennas, internet networking cables. Its uniqueness is cable dimensions are controlled to give precise conductor space which is important for the smooth function of a transmission line. The main advantage of this cable in the radio transmission line it carries the signal that is present only between the inner and outer conductor space. It permits to installed to next metal without the loss of power that is present in other transmission lines. Protects against external electromagnetic interference.
Rg rating:
Rg stands for radio guide. There are different types of cables but each cable has a different rating to differentiate the cables on their specific characteristics.
Types of Rg cables:
Rg-6:
It is a very simple cable used in various applications like residential and commercial. Its characteristics impedance is 75 ohms. It applies to the greater number of varieties in cables all these cables are different from each other by shielding, type of jacket, the composition of the center conductor, and types of dielectrics.
Rg-58:
This type of coaxial cable used a low-power signal. The characteristics impedance of Rg-58 is 50 to 52 ohms. 0.2 inches is the outside diameter of this cable. Its applications are used in two ways communication systems like police fire, radio, and marines all are worked with an ability of 50 ohms. Moderate high frequency is required for Rg-58.
Rg-59:
Its characteristics impedance is 75 ohms. Rg-59 is specific to low-power radio and RF connections. It is used in composite video, frequencies broadcast. It is used for long distances because its high-frequency losses are very high. It is cheaper than Rg-6.
Rg is used to shield and conduct core. Shielding is necessary to diminish the electrical noise and reduce its influence on the signal. It prevents crosstalk near cables. It lowers the electromagnetic radiation.