User:Nxlj8888

what's difference between CATV Taps and CATV Splitters?

Taps are used when a cable needs to feed TVs in one location and then continue downstream to more locations. Hallways in schools are a good example. The cable (called a "trunk" at this point) will hit a tap to feed a block of four rooms. The cable connected to the output side of the tap will run down the hall to the next block of four rooms where another tap will be inserted, and so on to the end of the hall. The closest taps have the highest attenuation, while taps at the end of the hall have the lowest attenuation.

Splitters divide the input between two or more outputs. It is a "dead-end" device. In the above example it would be used at the end of the hall to feed the last rooms.

Taps are rarely used in homes. Most home systems use a single splitter near the demarc (point at which the cable enters the house) to feed all of the drops.

A splitter will cut the signal by 3.5 dB at each output for every doubling of ports. IOW, a two-way will cut -3.5dB. A four-way = -7 dB, and so on. For this reason, a broadband amplifier is used before the input of the splitter to compensate for the splitter insertion loss. see more,http://www.tri-trusted.com/h-nd-19-4_11.html

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