:Typically 225 kbit / day of commands are transmitted to the rover directly from Earth, at a data rate of 1 2 kbit / s, during a 15-minute ( 900 second ) transmit window, while the larger volumes of data collected by the rover are returned via satellite relay.
42.
Back in the late 1970s the base consisted only of a small CDAA antenna array that was remote-controlled via satellite from the NSA listening post at Kunia, Hawaii, and a small force of civilian contractors from Bendix Field Engineering Corp . whose job it was to keep the antenna array and satellite relay facilities up and running 24 / 7.
