Cable splitter: Splitting signal energy
A cable splitter is a cable with multiple ports at one end that has been designed to split signal energy among all the ports in equal measure. However, a certain amount of signal energy is usually lost in the process, so that each port in a multiple-way splitter effectively receives less than the equal percentage of input signal. A cable splitter is highly suitable for use in homes and businesses where there is need to share the signal between more than one television units.
There are various types of cable splitters. If you have a cable splitter with a transformer, it will have an attenuation of about three-and-a-half dB on each output port. Such a splitter is capable of distributing the energy in the input port evenly to each of the output ports avoiding any significant loss. A cable splitter with a resistor is cheaper than one with a transformer. It has an attenuation of about six dB on each output port, and it loses about 50% of energy in the input port, while dividing the remaining 50% evenly to each of the output ports.
If you want good picture quality, choose a splitter made of oxygen-free copper wire with a low-loss dual of 75 Ohm and a foam dielectric. For noise-free sound, buy a splitter with wires that are individually double-shielded and covered in an OFC braid shield and aluminum foil. For durability, choose one with an ultra flexible jacket, a heavy-duty connector, and a corrosion-resistant shield. Go for a cable splitter that can be used in many devices.
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