KVH Industries TracPhone V11IP User Manual page 163

TracPhone V11-IP User's Guide
Glossary
Encryption
Ethernet
Firewall
Floating Ground
Footprint
Forward Link
Frequency
GPRS
GPS
174
As it applies to Wi-Fi, encoding of a wireless signal to protect it from
unauthorized reception.
Network communications standard adopted by most LANs.
Communicates via twisted pair cable at one of three maximum data
rates: (1) Standard - 10 Mbps, (2) Fast - 100 Mbps, and (3) Gigabit -
1 Gbps (1,000 Mbps).
Security mechanism that protects a network from unauthorized access.
Dangerous condition in which the chassis ground of an electrical
device differs from ship's ground. This difference can measure well
over 100 volts, risking damage to the equipment and electric shock,
potentially resulting in death. A floating ground can be prevented by
ensuring proper grounding of the device to ship's ground.
Coverage area of a satellite.
Communication path from the satellite hub to the user terminal.
Another term for "Downlink."
Number of cycles per second of a radio wave, measured in Hertz (Hz).
General Packet Radio Service. High-speed wireless data
communications standard.
Global Positioning System. Network of satellites that allow anyone
with a GPS device to accurately fix their position on Earth.