Originally posted by: Paperdoc
He'll have to ask the cable company if it is possible. Most cable companies now do provide internet access, but there is a practical problem of whether they have put enough bi-directional amps in the system to put a clear signal into his building. (Similar question about whether this modem's output will get to their closest relay amp OK.)
There's also a POSSIBLE problem with the building's wiring. Many older buildings had cables installed in the walls suitable for earlier TV systems that went up into the lower part of the UHF range, but that was all - say, below 500 MHz. That kind of installed cabling can't deliver good signals to your apartment in the 850 MHz range where systems feed the download signal. If that's OP's situation, could be a big limit. The cable company does not own the building wiring, so it's the landlord's call whether he / she wants to go to the expense of re-wiring to current cable standards.
The cable company MIGHT be willing to send a tech out for free to test the signals available in your friend's apartment and give a good answer.