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I am still confused as to how a cable modem is supposed to be
bi-directional. The way I understand most cable systems is that there are
many amplifiers (in theory unidirectional), splitters, and other things in
the way of a signal going uphill to the cable company. Wouldn't this
require modifications to the entire cable infrastructure?
Perhaps a system similar to the UDBC satellite and DSS systems operate would
be employed. Supposedly, when internet connectivity is employed on these
systems, a dialup modem (usually between 1200 and 9600bps) would call the
satellite company to send data and the receive data comes thru the satellite.
Another question; if "everyone" has this 10mbps bandwidth from the cable
company, this would force the ISPs that carry web pages and other services
that can be accessed remotely to employ a much higher speed connection.
Perhaps 20x or more, just like how T1 lines (1.544mbps, the most common
connection for ISPs) are compared to the standard (28.8kbps) modems used on