113SettingsUSNetwork SettingsYou can adjust the network settings to allow connection to a wireless local areanetwork (WLAN). There are two WLAN modes.In this mode, you can communicate directly with other PSP™ systems. Toestablish a connection in ad hoc mode, both PSP™ systems must either be setto " Automatic" or to the same channel. For details, refer to the instructionssupplied with the ad hoc mode-compatible software.The default setting for the menu item is underlined.In this mode, you can connect the PSP™ system to a network using an accesspoint.This is used to connect to the Internet ( page 87) or for features such asNetwork Update ( page 120).Network SettingsWarningTurn off the WLAN switch when in crowded places, such as in a crowdedtrain. If a person nearby is using a pacemaker, it is possible that the radiowaves could affect the pacemaker.Ad Hoc ModeAutomatic Automatically switches to the optimum channel forcommunicationCh 1, Ch 6 or Ch 11 Communicates using the specified channelInfrastructure modeCommunication with other PSP™systems over a WLAN