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iR1200 Modem
106 nextel.com
operated by the U.S. Department of Defense but is available for general use
around the world.
GPS Antenna
An antenna designed to receive GPS radio navigation signals.
GPS Processor
An electronic device that interprets the GPS radio navigation signals (received
by the GPS antenna) and determines a location solution. The GPS processor
may also be able to apply (and determine) differential GPs corrections.
GPS Receiver
The combination of GPS antenna and GPS processor.
Hand-Held Devices
Small computing appliances, such as palmtops, personal digital assistants and
pen-based computers.
Hertz (Hz)
A frequency unit equal to one cycle per second.
Home Agent
The carrier or router responsible for determining the next network point to
which a packet (data) should be forwarded toward its destination.
Internet
A series of interconnected local, regional, national and international networks,
linked using TCP/IP. The Internet links many government, university, research
and commercial sites. It provides e-mail, Web browsing and file transfer
services.
Internet Service Provider (ISP)
Provides your computer with Internet access. Also known as Service Provider.
Intranet
A network based on TCP/IP protocols (an internet) belonging to an
organization, usually a corporation, accessible only by the organization’s
members, employees or others with authorization. An Intranet’s Web sites look
and act just like any other Web sites, but the firewall surrounding an intranet
fends off unauthorized access.