Coaxial cables are advantageous because they support multiple channels and have a high bandwidth and low error rates. However, they are disadvantageous because they are susceptible to security risks, damage, congestion and noise, and they are costly to install.
Coaxial cables are suitable for long distances, and they are available in multiple sizes. Using coaxial cables instead of twisted-pair cables increases network distance by 500 meters. Coaxial cables can support many services, including multimedia, video, data and voice. In coaxial cable transmission, each channel has a high capacity, depending on the location of the service. A coaxial cable has a shielded copper wire, which safeguards against electric noise in a network, leading to lower error rates.
Coaxial cable technology has been present for many years in data communication. A coaxial cable costs less than a fiber-optic cable. However, coaxial cables are susceptible to electromagnetic and radio frequency interference and may transfer noise between components of a network. If lightning strikes a coaxial cable, it conducts it and burns equipment at its end. Coaxial cables lose signal in long distances, but they are suitable for home use. Individuals should consider the size of a coaxial cable because it is difficult to work with thick cables and pass them through existing troughs and conduits that are limited in size.Learn More
As of 2014, Comcast's customer service telephone number is 1-800-934-6489. This is the initial contact number for all departments, and collections calls are routed to the appropriate department after the call is connected. Comcast does not release a customer-facing direct number for its Collections department.Full Answer >
To remove a tape that is stuck in a VCR, remove the machine's cover and wind the gears to release the videotape and the spool. Sometimes, it is necessary to remove a lodged object that has prevented the tape from moving in the machine, such as a small toy that a child has stuffed through the opening.Full Answer >
To clean a flat-screen television, use a soft cloth to take off any dust, and use a cleaning solution of vinegar and water to remove any hard spots. Wipe gently to avoid damaging the display.Full Answer >
TV picture problems can usually be spotted by checking to see if there are any issues or abnormalities with the TV's On-Screen Display, or OSD, which can be checked by using the TV's remote, not the cable or satellite remote, and clicking on the volume, channel and input buttons to see if the TV's projection lamp is working properly. If it isn't, those patterns that are usually displayed on the screen will look distorted or disappear entirely.Full Answer >