Coaxial cabling pros and cons

Answer 1

The use of coaxial cables makes it hard to hide wiring because they are usually not color coded to match paint colors. There is also a chance for breakage within the cable itself that will take hours to determine and fix. A pro to coaxial cabling is the fact that there is no chance for interference with the alternative Wi-Fi connection. It is also easier to steal an internet connection from Wi-Fi than it is a cable connection.

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All data and r.f. lines including arial down-leads should be either co-axial or screened - the colour of the sheath is immaterial, though most such cables are black, grey or white/beige.

Answer 2

· Broadband system-Coax has a sufficient frequency range to support multiple channels, which allows for much greater throughput.

· Greater channel capacity-Each of the multiple channels offers substantial capacity. The capacity depends on where you are in the world. In the North American system, each channel in the cable TV system is 6MHz wide, according to the National Television Systems Committee (NTSC) standard. In Europe, with the Phase Alternate Line (PAL) standard, the channels are 8MHz wide. Within one of these channels, you can provision high-speed Internet access-that's how cable modems operate. But that one channel is now being shared by everyone using that coax from that neighborhood node, which can range from 200 to 2,000 homes.

· Greater bandwidth-Compared to twisted-pair, coax provides greater bandwidth systemwide, and it also offers greater bandwidth for each channel. Because it has greater bandwidth per channel, it supports a mixed range of services. Voice, data, and even video and multimedia can benefit from the enhanced capacity.

· Lower error rates-Because the inner conductor is in a Faraday shield, noise immunity is improved, and coax has lower error rates and therefore slightly better performance than twisted-pair. The error rate is generally 10-9 (i.e., 1 in 1 billion) bps.

· Greater spacing between amplifiers-Coax's cable shielding reduces noise and crosstalk, which means amplifiers can be spaced farther apart than with twisted-pair.

• sufficient frequency range to support multiple channel, which allows for much greater throughput.

• lower error rates. because the inner conductor is in a Faraday shield, noise immunity is improved, and coax has a lower error rates and therefore slightly better performance than twisted pair.

• greater spacing between amplifiers coax's cable shielding reduces noise and crosstalk, which means amplifiers can be spaced farther apart than with twisted pair.