User manual AIRLIVE WN-300PCI

[. . . ] 802. 11b/g/n 2T2R 300Mbps PCI Card WN-300PCI User's Manual Copyright & Disclaimer No part of this publication may be reproduced in any form or by any means, whether electronic, mechanical, photocopying, or recording without the written consent of OvisLink Corp. OvisLink Corp. has made the best effort to ensure the accuracy of the information in this user's guide. However, we are not liable for the inaccuracies or errors in this guide. All information is subject to change without notice All Trademarks are properties of their respective holders. FCC Statement Federal Communication Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. [. . . ] It may not work with all wireless access point and wireless devices. Enable TCP Check this box and the configuration utility will adjust TCP window size automatically to get better performance. It should be safe for Window Size most of wireless environments, but if you found some problem on data transfer, uncheck this box. Fast Roaming Check this box and you can control the threshold that the wireless network card should switch to another wireless access point with better signal quality. Only adjust value when you understand what it means and you need to roam between multiple access points. Show When your computer is being authenticated by wireless authentication server, a dialog window with the process of Authentication authentication will appear. This function is helpful to find out the Status Dialog problem when you can not be authenticated, and you can provide this information to authentication server's administrator for debugging purpose. Enable CCX Enable Cisco Compatible eXtensions. CCX is a wireless feature developed by Cisco used to improve the wireless performance with CCX compatible wireless devices. Check this box if you need to connect to CCX-compatible wireless devices. When you enabled CCX, the following setup items will become available: Turn on CCKM: Check this box to enable CCKM (Cisco Centralized Key Management), which enables wireless clients to roam between CCKM-enabled access points in very short time. Enable Radio Measurements: When you're connecting to CCX-compatible access point, check this box to enable radio measurement function to improve wireless connectivity. Non-Serving Channel Measurements Limit: When you're connecting to CCX-compatible access point, check this box to enable measurement on unused radio channels to improve wireless connectivity. After you finish the settings, click `Apply' to apply new settings. 37 2. 5 View Network Statistics The configuration utility provides information about network statistics and link status. If you want to know how your wireless network card works, you can use these functions to get detailed information about the wireless connection you're using. Please follow the following instructions to check network statistics: 1. Right-click the Airlive configuration utility icon located at lower-right corner of computer desktop and then click `Launch Config Utility'. 2. Click `Statistics' menu and the statistics of wireless connection will be displayed: All connection-related statistics is displayed here. You can click `Transmit' or `Receive' tab, to view the statistics of transmitted or received packets. You can also click `Reset Counter' button, to reset the statistics of all items back to 0. 38 2. 6 WMM Setting This wireless network card provides WMM (Wi-Fi Multimedia) function, which can improve the performance of certain network applications, like audio/video streaming, network telephony (VoIP), and others. When you enable the WMM function of this network card, you can define the priority of different kinds of data, to give higher priority to applications which require instant responding. Therefore you can improve the performance of such network applications. [. . . ] To an unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most narrowband receivers. 13. 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 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. [. . . ]