What is Coaxial cable
Coaxial cable was invented in 1880 by an English engineer and mathematician by the name Oliver Heaviside, who patented the design in the same year. Coaxial cable received its name because it constitutes one physical channel that carries the signal surrounded, following a layer of insulation, and another concentric physical channel, both running along the same axis, the external channel serves as a ground. Coaxial cable is a cable used in the transmission of video, communication and audio. This cable has a characteristic of high bandwidth and a great transmission capacity.
Coaxial cable can be described as a type of copper cable built specifically with a metal shield and other components set up to block signal interference. It is majorly used by cable TV companies to connect their satellite antenna to customer homes. It is used in networks and to facilitate broadband internet connection through a cable modem. It can so be simply described as a type of electrical cable that has an inner conductor by a tubular insulating layer that is surrounded by a tubular conducting shield.
The are various types of the coaxial cable but the most common sizes are Radio Guide 6, Radio Guide 11 and Radio Guide 56: the number of these versions of cables refer to the diameter of the cables. They are also called RF cables which means Radio frequency.
The coaxial cable is constructed with a center conductor that is surrounded by a dielectric of circular cross section and an outer conductor which also has a circular cross-section. The signals within the bandwidth of operation of the coax cable have a standard configuration known as transverse electric and magnetic (TEM). In this TEM mode, the electric field shuttle between the center and outer conductor and are of uniform strength through the cross section of the cable but the magnetic field lines are circular and perpendicular to the overall length of the cable. Therefore, a continuous cable with perfect conducting shield, no electric or magnetic field extent beyond the outer conductor, this helps prevent both signal leakage and any form of ingress.
The coaxial cable is made up of four primary components which include;
· A core copper wire that functions as the primary channel
· A dielectric plastic insulator that houses the copper
· A braided mesh that lies beneath the insulator. This serves to prevent the external interference of electromagnetic signals
· The external layer which is made of teflon or plastic coating that is used to protect the inner copper from any form of physical damage.
Where is coaxial cable used?
A broad range of applications exist for coaxial cables. The coaxial cable is primarily used by cable TV companies for connecting the satellites to their customers. It is also used by telephone companies to help connect base offices to the connection poles with close proximity to each customer. It is also used in offices and homes as an ethernet connectivity medium and in most data centres. Coaxial cable is used as a transmission line for radio frequency signals. One advantage that coaxial cable have over other types of radio transmission channels is that an ideal coaxial cable possesses the electromagnetic field that carries the signal that only exists in the space between the inner and outer conductors. This attribute allows coaxial cable to be installed next to metal objects without power losses that are characteristic or other types of transmission lines. The heavy duty design of coaxial cables allows them to carry signals over a long distance with little or no frequency degradation. In most cases, coax cables laid by cable companies a long time ago are still capable of providing Hi-definition TV signals and high speed internet access at the same time. More so, some coax cables are designed for low bandwidths applications and may not provide enough bandwidth to carry a full Hi-definition signal. A certain coax cable “RG-6" is the best choice for High definition TV signals and cable internet service.
How to strip coaxial cable
At cheers engineering, our coaxial cable stripper has a diameter range of labelled holes that match the common size of coaxial cables. When you insert the cable into the machine and press the control button, the machine precisely severs through the plastic insulation layer without having to damage the copper wire. The machine removes the wire insulation up to a specific length. The coaxial cable is inserted into the coaxial cable stripping machine and then spin the tool around the central axis of the coaxial cable using the finger. The machine cuts through just the outer insulation and then pulls it off as the cable is removed, exposing the stranded copper. Although difference manufacturers offer different approach to with stripping, the overall process is largely the same with all tools.
Why use our Machines?
At Cheers electronic limited, our coax cable stripping machine has an inbuilt screen that is used to enhance the easy navigation through the machine. This stripping machine strips the coax insulation neatly to a specified length. The wire is inserted, after which the stripping machine automatically clamps the wire and rotate to ensure the total removal of the insulating material leaving the wire inside neat and untouched. The stripping process is done in a matter of seconds.
Our coaxial cable stripping machines allow for full access programmable settings for each step in the stripping program which can be done through the various functional buttons on the machine. The screen displays the instruction in real time being executed by the machine
1. It allows to adjust the stripping position, alongside the stripping diameter to ensure the insulator material is the only one being stripped off
2. The is also room to effectively programme the feed rate of the stripping blades
3. Another important setting is the rotational speed of the stripping head and the spindle directions of the stripping head
4. The time relay for the wayback (the time where the blades open slightly before pulling off)
5. The length in mm of the insulation to be cut off.
All these put together makes our coaxial cable stripping machine stand out as the best amongst the rest.
