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changed or dynamically assigned by the network, the MAC address of a networking
device is permanent.
ü What is WEP?
Wired Equivalent Privacy (WEP) is a type of data encryption mechanism described in
the IEEE 802.11 standard.
ü Could I implement the driver/utility installations on another operating system, e.g.
Windows 98SE, 2000 and ME? Are there any differences of driver/utility installa-
tions among these different operating systems?
Yes, you can. All the installation mentioned in this user’s manual could be implemented
on Windows 98SE/ME/200/XP and there will be no difference.
ü Can Wireless products support printer sharing?
Wireless products perform the same function as LAN products. Therefore, Wireless
products can work with Netware, Windows NT/2000/XP, or other LAN operating sys-
tems to support printer or file sharing.
ü What is DSSS？What is FHSS？And what are their differences?
Frequency-hopping-spread-spectrum (FHSS) uses a narrowband carrier that changes
frequency in a pattern that is known to both transmitter and receiver. Properly synchro-
nized, the net effect is to maintain a single logical channel. To an unintended receiver,
FHSS appears to be short-duration impulse noise. Direct-sequence spread-spectrum
(DSSS) generates a redundant bit pattern for each bit to be transmitted. This bit pattern
is called a chip (or chipping code). The longer the chip, the greater the probability that
the original data can be recovered. Even if one or more bits in the chip are damaged
during transmission, statistical techniques embedded in the radio can recover the
original data without-the need for retransmission. To an unintended receiver, DSSS
appears as low power wideband noise and is rejected (ignored) by most narrowband
receivers.
ü What is Spread Spectrum?
Spread Spectrum technology is a wideband radio frequency technique developed by the
military for use in reliable, secure, mission-critical communication systems. It is de-
signed to trade off bandwidth efficiency for reliability, integrity, and security. In other
words, more bandwidth is consumed than in the case of narrowband transmission, but
the trade off produces a signal that is, in effect, louder and thus easier to detect, pro-
vided that the receiver knows the parameters of the spread-spectrum signal being
broadcast. If a receiver is not tuned to the right frequency, a spread –spectrum signal
looks like background noise. There are two main alternatives, Direct Sequence Spread
Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).