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Standard RG-59U coaxial cable can carry the video signal to distances up to 1000 ft. For longer runs, you should use RG-11U, which has a thicker center conductor and can carry the video signal up to 2400 ft. For extremely long cable runs it is necessary to add inline amplification. Standard RG-59U [[Coaxial Cable Data|coaxial cable]] can carry the video signal to distances up to 1000 ft. For longer runs, you should use RG-11U, which has a thicker center conductor and can carry the video signal up to 2400 ft. For extremely long cable runs it is necessary to add inline amplification. Capacitance is affected by the cable length. Long runs can lead to high frequency signal loss and poor picture quality. Capacitance is affected by the cable length. Long runs can lead to high frequency signal loss and poor picture quality. The most common means of conducting video signals for cctv is coaxial cable. Not only is coax the most commonly used cable, but also the least expensive, most reliable, most convenient, and easily maintained way of transferring electronic images in a CCTV system. The most common type used is RG59/U, but this designation actually represents a family of cables with widely varying electrical characteristics. Other varieties like RG59/U are RG6/U and RG11/U; these are used predominately in CCTV and video work. The RG reference is the cable specification for use as a "radio guide ",while the numerical value helps differentiate the specifications of each individual cable. Common "coax" cable RG59U,RG6U, and RG11U is circular. Each has a center conductor surrounded by dielectric insulating material, which in turn is covered by a braid to shield against electromagnetic interference (EMI). The outer covering is the "jacket". * The RG-59 has the highest attenuation of the two other types and you can expect to get a distance of about 750 - 1,000 ft. * The RG-6 has lower attenuation characteristics than RG-59 and you can expect distances of about 1,000 - 1,500 ft * The RG-11 type has the lowest attenuation characteristics and you can expect distances of 2200 ft - 3000 ft. If you need to go beyond 3,000 ft., then you need to use amplifiers or use fiber optic cable as a method of transmission. Attenuation is the opposite of amplification, it is a reduction in amplitude and intensity of a signal.[[Category:Electronics]][[Category:CCTV]]