Atlantis Land A02-UP-W54 User Manual

                                                                                 

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This will depend on whether or not the application is designed to be used over a 
network. Consult the application’s user guide to determine if it supports operation over 
a network. 
2. 

Yes, as long as the game supports multiple players over a LAN (local area network). 
Refer to the game’s user guide for more information. 
3. 

Spread Spectrum technology is a wideband radio frequency technique developed by 
the military for use in reliable, secure, mission-critical communications systems. It is 
designed 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, 
provided 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). 
4. 

Frequency-Hopping Spread-Spectrum (FHSS) uses a narrowband carrier that changes 
frequency in a pattern that is known to both transmitter and receiver. Properly 
synchronized, 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. 
5. 

WLAN features two-fold protection in security. On the hardware side, as with Direct 
Sequence Spread Spectrum technology, it has the inherent security feature of 
scrambling. On the software side, WLAN offers the encryption function (WEP) to 
enhance security and access control. 
6. 

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 64-bit or 128-
bit shared key algorithm, as described in the IEEE 802.11 standard.  
7.