When he was released from jail in January, following a November probation violation, Sanford was fitted with a global positioning tracking unit on his ankle, according to the Washington Department of Corrections.
Each onboard ADS-B set consists of a Global Positioning System satellite navigation unit, two Pentium microprocessors, some software and a radio transmitter-receiver--not much more gear than you would find behind the dash of a new Cadillac.
While installing the Pharos Global Positioning System (GPS) unit reviewed below, I needed to copy a 10MB file to the Cassiopeia, but its 16MB of RAM didn't offer enough free space.
Cemex can do this because its trucks are now equipped with dashboard computer navigation terminals that allow tracking by a central dispatch unit using state-of-the-art global positioning satellite technology.