About Computer Networking: Why The iPhone4 Death Grip Doesn't Always Work

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Computer Networking Computer Networking Fundamentals Get Connected Use and Upgrade From Bradley Mitchell, your Guide to Computer Networking The recent Apple iPhone 4 "Antennagate" controversy put a bright public spotlight onto an technical issue of wireless networking well-known to engineers for many years. Called attenuation, the concept is an often temporary loss of signal strength caused by wireless interference or physical obstructions. What Is Attenuation? Wireless radios like those used in either Wi-Fi networking gear and cell phones are generally all susceptible to attenuation, but the extent of the problem varies unpredictably depending on many factors like the orientation of antennas, air temperature and humidity. In the case of an iPhone "death grip," even very small changes in position of a person's hand on the phone, and how dry or moist it is, greatly affect the extent of attenuation. DISCUSS: Nintendo Compatible Routers Some owners of the Nintendo Wii or Nintendo DS have difficulty connecting their devices to the Internet due to an incompatibility with their home router's network firewall. In the worst case, folks need to disable the router firewall. Fortunately, though, there is at least one other alternative, at least for the Wii. Do you know of any other workarounds? What Is CAT7? If you're familiar with CAT5 and CAT6, then you know CAT7 is the next generation technology for wired networks. But do you know where to actually buy a CAT7 cable? What Is 'ipconfig'? A commmand line utility available on all modern versions of Microsoft Windows, ipconfig allows you to get the IP address information of a Windows computer. It also offers some controls for managing active TCP/IP connections. In other words, its one program on your PC you'll want to take a few minutes to learn about. Wireless / Networking Ads Computer Networking Enter Sweepstakes Ice Cream Enter Contest Email Sign Up Featured Articles Networking With a Wireless Router IP Addresses on Computer Networks Connecting Two Computers Home Network Diagrams A-Z Networking Glossary Wireless/Networking Message Board   More from About.com Plan a Unique Vegas Wedding The minister, music and champagne are just the beginning -- why not get married aboard a helicopter or have a pirate swing in to deliver your rings? Arrrr! More> Join About.com's User Panel! Share your opinions and help us make About.com more relevant, informative and enjoyable to use. More> This newsletter is written by: Bradley Mitchell Computer Networking Guide Email Me | My Blog | My Forum   Sign up for more free newsletters on your favorite topics You are receiving this newsletter because you subscribed to the About Computer Networking newsletter. If you wish to change your email address or unsubscribe, please click here. About respects your privacy: Our Privacy Policy Contact Information: 249 West 17th Street New York, NY, 10011 © 2010 About.com   Must Reads Wireless Router Networking IP Addresses + Internet Networks Connecting Two Computers Home Network Diagrams Home Network Setup Advisor Tool Advertisement