Apple MB763LL Setup Guide - Page 32

 Avoid placing your AirPort Extreme in areas surrounded by metal surfaces on three or more sides.  If you place your AirPort Extreme in an entertainment center with your stereo equipment, avoid completely surrounding the AirPort Extreme with audio, video, or power cables. Place your AirPort Extreme so that the cables are to one side. Maintain as much space as possible between the AirPort Extreme and the cables.  Try to place your AirPort Extreme at least 25 feet (7.6 meters) from a microwave oven, 2.4 or 5 gigahertz (GHz) cordless phones, or other sources of interference. Items That Can Cause Interference with AirPort The farther away the interference source, the less likely it is to cause a problem. The following items can cause interference with AirPort communication:  Microwave ovens  Direct Satellite Service (DSS) radio frequency leakage  The original coaxial cable that came with certain types of satellite dishes. Contact the device manufacturer and obtain newer cables.  Certain electrical devices such as power lines, electrical railroad tracks, and power stations  Cordless telephones that operate in the 2.4 or 5 GHz range. If you have problems with your phone or AirPort communication, change the channel your base station or AirPort Extreme uses, or change the channel your phone uses.  Nearby base stations using adjacent channels. For example, if base station A is set to channel 1, base station B should be set to channel 6 or 11. 32 Chapter 4 Tips and Troubleshooting