Video Cables

Generally, not much focus is laid upon the quality of the video cables, which is based on a great misconception that perhaps the quality of the cables is not much important, with regards to the quality of the pictures or other video images.  If you are really interested in the enjoyment got from the home theatre or other video equipment, you need to emphasize and focus on the quality of the video cables to a reasonable extent. For this, you first need to understand the real aim or the motive behind the use of these video cables.  These are actually used to transmit, communicate or carry the video signals from one place to another.  Now in this regard, the quality of the video signals is largely dependent on the quality of the video cables, as the unobstructed carriage of the video signals requires fullest cooperation of the video cables and in this regard, the material of the video cables is really important. Now we need to evaluate what a video cable must be alike. A good cable has got a reasonable circumference and thus facilitates the communication of the video signals easily. Actually, the circumference of the cable necessarily has a relation with the distance; a video signal is to cover.  In this regard, more the distance to be covered, more the circumference of the video cable needs to be. But this is a general rule and will no affect the planning to such an extent that for hundreds of miles, we keep n multiplying the circumference of the video cable. Another misconception is of considering an audio cable, capable of carrying the video signals as well.  Actually, an audio cable cannot carry the video signals, as the composition and structure of a video cable greatly differs from those of an audio cable. Generally a standard cable is a 75 Ohm cable. In production in order to arrive to 75 Ohms, we take the size of the centre or 'going' conductor relative to its distance from the shield or return conductor. That distance which is formed from a foamed polyethylene determines the impedance. If follows if that distance is altered, then the impedance is also altered. The quality from HDMI cables differ according to the conductor type and quality. Atlas only use the finest quality materials and plugs in order to ensure the picture quality together with that of the sound meet our exacting standards. You need to keep in mind that the cables won’t improve the quality of your signal. They can however make it worse. A perfect cable would simply transmit a signal unchanged from one point to the other. Many aspects determine how much signal loss there will be including signal type, build quality, length, and more. For a better understanding, we need to know about the anatomy of a cable. A cable consists of the conductors, dielectric, foil shield, braded shield, jacket, interconnect and contacts. A conductor is the actual wire used to transmit the signal. Copper is the most common conductor due to its high conductivity and low cost. Another form of a conductor is fiber optics, which use light instead of current to transmit signals. Dielectric is a material that is a poor conductor of electricity. The purpose of the dielectric is to provide a nonconductive barrier between any conductors. Foil Shield is a very thin shield used to protect the conductor from RFI noise. RFI (Radio Frequency Interference) is a form of high-frequency EMI. Braded Shield is the shield around a cable serves as a signal return path, and also protects the conductor from EMI. Jacket is used to help provide strength to the cable, and to protect all the inner components. Interconnect  determines what type of video, audio, or data device you can connect to and contacts is the main point of transmission for any voltage signal. While purchasing a video cable, you need to consider the points like type of signal / interconnect, signal and interconnect compatibility, the signal type, i.e. analog vs digital, build quality, length of cable, impedance, surrounding environment, twisted or untwisted conductors and last, though not the least its price.