NETGEAR WG111 user manual Wireless Channels

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User Manual for the NETGEAR 54 Mbps Wireless USB 2.0 Adapter WG111

Note: Whatever keys you enter for an AP, you must also enter the same keys for the client adapter in the same order. In other words, WEP key 1 on the AP must match WEP key 1 on the client adapter, WEP key 2 on the AP must match WEP key 2 on the client adapter, etc.

Note: The AP and the client adapters can have different default WEP Keys as long as the keys are in the same order. In other words, the AP can use WEP key 2 as its default key to transmit while a client adapter can use WEP key 3 as its default key to transmit. The two devices will communicate as long as the AP’s WEP key 2 is the same as the client’s WEP key 2 and the AP’s WEP key 3 is the same as the client’s WEP key 3.

Wireless Channels

IEEE 802.11b and g wireless nodes communicate with each other using radio frequency signals in the ISM (Industrial, Scientific, and Medical) band between 2.4 GHz and 2.5 GHz. Neighboring channels are 5 MHz apart. However, due to spread spectrum effect of the signals, a node sending signals using a particular channel will utilize frequency spectrum 12.5 MHz above and below the center channel frequency. As a result, two separate wireless networks using neighboring channels (for example, channel 1 and channel 2) in the same general vicinity will interfere with each other. Applying two channels that allow the maximum channel separation will decrease the amount of channel cross-talk, and provide a noticeable performance increase over networks with minimal channel separation.

Wireless Networking Basics

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Contents 202-10026-01 Vcci Statement Certificate of the Manufacturer/ImporterFCC Guidelines for Human Exposure Declaration Of ConformityFCC Requirements for Operation in the United States Netgear 54 Mbps Wireless USB 2.0 Adapter WG111 Operation Using 2.4 GHz Channels in FranceMetropolitan Regions with Eased Restrictions in 2.4GHz Band 202-10026-01 Contents Appendix C Preparing Your PCs for Network Access Glossary Index Contents Chapter About This Manual Manual SpecificationsAudience, Scope, Conventions Typographical conventionsHtml version of this manual How to Use this ManualHow to Print this Manual About This Manual Key Features Chapter IntroductionAbout the WG111 What’s in the Box? Road Map for ‘How to Get There From Here’If I Want To? What Do I Do? What’s Needed? How Do I? Road Map for How to Get There From HereNetgear 54 Mbps Exchange files Use printers Chapter Basic Setup What You Need Before You BeginVerifying System Requirements Observing Location and Range Guidelines Two Basic Operating ModesWG111 Default Wireless Configuration Settings Basic Installation Instructions Install the WG111 driver and configuration utility software For Windows XP Users Installing a WG111Install the Netgear 54 Mbps Wireless USB 2.0 Adapter WG111 Configure your WG111 Verify wireless connectivity to your network Click Install Driver and Utility For Windows 2000 & 98/Me Users Installing a WG111Found New Hardware Wizard WG111 System Tray Icon Profile Configure your WG111 and saveVerify wireless connectivity to your network WG111 Wireless Connection Indicators Interpreting the LED on the WG111LED Descriptions Interpreting System Tray Icon Colors TroubleshootingRed YellowBasic Tips Troubleshooting Frequently Asked QuestionsBasic Setup Basic Setup Basic Setup Chapter Configuration Understanding the Configuration OptionsUsing Configuration Profiles How to Configure an Infrastructure Mode Profile Connecting to an Access Point in Infrastructure ModeRun the WG111 Configuration Utility Configure the wireless Network settingsHow to Configure an Ad-hoc Mode Profile Connecting to Another PC in Ad-hoc ModeWindows Run program dialog box Configure the PC network settingsPing test results How to Start a Computer-to-Computer Ad-Hoc Network Enabling Wireless Security FeaturesConfigure the Security settings How to Configure WEP Encryption SecuritySave your settings in a Profile Statistics Advanced SettingsConfiguration USB Appendix a Technical SpecificationsTechnical Specifications Appendix B Wireless Networking Basics Wireless Networking OverviewInfrastructure Mode Authentication and WEP Ad Hoc Mode Peer-to-Peer WorkgroupNetwork Name Extended Service Set Identification Essid Open System Authentication Authentication Authentication Open System Steps Do Not Use WEP Authentication Shared Key StepsKey Size WEP Configuration OptionsWireless Channels 802.11b and g Radio Frequency Channels Radio frequency channels used are listed in TableConfiguring Windows 98 and Me for TCP/IP Networking Appendix C Preparing Your PCs for Network AccessInstall or Verify Windows Networking Components Preparing Your Computers for TCP/IP NetworkingPreparing Your PCs for Network Access Choose Settings, and then Control Panel Enabling Dhcp in Windows 98 and MeLocate your Network Neighborhood icon Primary Network Logon is set to Windows logon Verifying TCP/IP Properties Selecting Windows’ Internet Access MethodConfiguring Windows 2000 or XP for TCP/IP Networking Dhcp Configuration of TCP/IP in Windows XP Dhcp Configuration of TCP/IP in Windows XP orTCP/IP details are presented on Support tab Dhcp Configuration of TCP/IP in Windows Verify that Obtain an IP addressRight click on Local Area Connection and select Properties Obtain an IP address automatically is selected Verifying TCP/IP Properties for Windows XP or Preparing Your PCs for Network Access Glossary DSL Internet service provider Ssid Wins Glossary Numerics Index