How does a cable modem compare to xDSL?
Cable modems use a RF signal to carry data through your television cable wire. Since cable modem users share a single network connection to the Internet, speeds will fluctuate depending on the number of customers online at the same time. xDSL uses the same copper wire as your copper wire telephone line to carry data, but the data is carried on a higher frequency than voice. In order for the xDSL signal to work, the copper wire must be less than 18,000 feet away from the Telephone Company’s central office. Cable modem speeds and xDSL speeds are similar, but xDSL is more expensive in most markets.
