User's Manual

Winmate Communication Inc. User Guide Feb 12, 2001
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The international unit for measuring frequency is Hertz (Hz), which is equivalent to
the older unit of cycles per second. One Mega-Hertz (MHz) is one million Hertz. One
Giga-Hertz (GHz) is one billion Hertz. For reference: the standard US electrical
power frequency is 60 Hz, the AM broadcast radio frequency band is 0.55 -1.6 MHz,
the FM broadcast radio frequency band is 88-108 MHz, and microwave ovens
typically operate at 2.45 GHz.
reassociation service
Enables an IEEE 802.11 station to change its association with different access points
as the station moves throughout the facility.
roaming
Movement of a wireless node between two microcells. Roaming usually occurs in
infrastructure networks built around multiple access points.
shared key authentication
A type of authentication that assumes each station has received a secret shared key
through a secure channel independent from an 802.11 network. Stations authenticate
through shared knowledge of the secret key. Use of shared key authentication requires
implementation of the 802.11 WEP algorithm.
spread spectrum
A modulation technique that spreads a signal’s power over a wide band of frequencies.
The main reasons for this technique are that the signal becomes much less susceptible
to electrical noise and interferes less with other radio-based systems.
Transmission Control Protocol (TCP)
A commonly used protocol for establishing and maintaining communications between
applications on different computers. TCP provides full-duplex, acknowledged, and
flow-controlled service to upper-layer protocols and applications.
Wired Equivalent Privacy (WEP)
An optional IEEE 802.11 function that offers frame transmission similar to a wired
network. The WEP generates secret shared encryption keys that both source and
destination stations can use to alter frame bits to avoid disclosure to eavesdroppers.