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skyDSL operates its service by running the downstream connection over a satellite connection, while the upstream connection is handled by a modem or ISDN line. skyDSL 2 offers a 100% satellite solution for those lacking phone lines, a common problem in many communities.
A major speed factor in this type of internet connection is statistical contention between users for access to the satellite channel. Satellite bandwidth is shared by all users. During a download, the transmission rate can be expected to fluctuate as other users sign on and off and vary their rates of download.