APRS> The Automatic Packet Reporting System
Amateur Radio Operators have designed and put into
service in many parts of the world, a very unique
GPS based system. This system consists of a GPS receiver in
your automobile along with a Terminal Node Controller (TNC) and (usually)
a UHF or VHF voice radio. Using this system,
the precise location of the automobile is transmitted
through a packet node (repeater) system.
Other Amateur Radio Operators listening at any of the nodes
can track the progress of ALL vehicles equipped with APRS throughout
the covered region.
For more than you ever wanted to know about APRS, Go to the TAPR
GPS+APRS WEBSITE or you may want to go to the APRS
Special Interest Group (SIG) at the TAPR website.