Provides everything Wi-Fi users need to know to design, build, protect, and extend a Wi-Fi wireless network! In this book, legendary tech teacher, wireless expert, and best-selling author Jeff Duntemann explains how to make Wi-Fi really work. Easy and economical hands-on projects allow readers to boost power with a variety of common household items, which make this book a true standout.

The first edition of this book has quickly become the best-selling guide for Wi-Fi users around the world. Master technical author, Jeff Duntemann, makes tangled Wi-Fi technological issues very comprehensible. Jeff explains the blizzard of Wi-Fi concepts and standards, including the new 802.11g, the complex and fluky security issues, and shows users how to protect themselves from both obvious and non-obvious threats. He also covers the human element in the Wi-Fi movement, including hacker threats and Wi-Fi communities. Jeff's coverage of wardriving has been highly praised by many Wi-Fi experts and the top Wi-Fi Web sites. Many technical drawings clarify difficult concepts, with abundant Web pointers to further information. The book features numerous hands-on projects that can dramatically increase the performance of home and small business Wi-Fi systems. Some of the important and new topics covered in the book include: Money-saving Wi-Fi network design and implementation techniques Wi-Fi communities Access points and gateways Security and privacy Wireless security auditing with WarLinux and Kismet The art of wardriving How to create powerful low-cost antennas How to protect yourself against clever hackers

The practice of WarDriving is a unique combination of hobby, sociological research, and security assessment. The act of driving or walking through urban areas with a wireless-equipped laptop to map both protected and un-protected wireless networks has sparked intense debate amongst lawmakers, security professionals, and the telecommunications industry. This first ever book on WarDriving is written from the inside perspective of those who have created the tools that make WarDriving possible and those who gather, analyze, and maintain data on all secured and open wireless access points in very major, metropolitan area worldwide. These insiders also provide the information to secure your wireless network before it is exploited by criminal hackers.* Provides the essential information needed to protect and secure wireless networks* Written from the inside perspective of those who have created the tools for WarDriving and those who gather, maintain and analyse data on wireless networks* This is the first book to deal with the hot topic of WarDriving

Finally, here is a single volume containing all of the engineering information needed to successfully design and implement any type of wireless network! Author Dan Dobkin covers every aspect of RF engineering necessary for wireless networks. He begins with a review of essential math and electromagnetic theory followed by thorough discussions of multiplexing, modulation types, bandwidth, link budgets, network concepts, radio system architectures, RF amplifiers, mixers and frequency conversion, filters, single-chip radio systems, antenna theory and designs, signal propagation, as well as planning and implementing wireless networks for both indoor and outdoor environments. The appendices contain such vital data as U.S., European, and Japanese technical and regulatory standards for wireless networks, measurements in wireless networks, reflection and matching of transmission lines, determining power density, and much more. No matter what type of wireless network you design—Bluetooth, UWB, or even metropolitan area network (MAN)—this book is the one reference you can't do without! - The A-to-Z guide to wireless network engineering—covers everything from basic electromagnetic theory to modulation techniques to network planning and implementation! - Engineering and design principles covered are applicable to any type of wireless network, including 802.11, 802.16, 802.20, and Bluetooth. - Discusses state-of-the-art modulation techniques such as ultra wideband (UWB) and orthogonal frequency-division multiplexing (OFDM).

Whether you use your Tablet PC for work or play, this easy to follow guide gets you going quickly! Using real world scenarios that apply to teachers, students, business professionals, medical professionals, and more,Absolute Beginner's Guide to Tablet PCsshows you how to put Tablet PCs to use in real life. The book shows you the basics for getting your Tablet PCs up and running, then kicks it into high gear and shows you how to put your newfound palmtop power to use! You will also learn how to use Microsoft's new OneNote application to take, store, sort, and share notes with other users.

Show how to run a Windows-based PC efficiently and quickly by optimizing performance, covering such topics as cleaning up files, uninstalling programs, fixing desktop and start menus, reducing spam, and improving the Registry.

Illuminating the reality of worldwide access to information, this expanded three-volume set is a one-stop resource for Internet history, biographies of key figures, and analysis of how the Internet operates. The first version of this reference won the RUSA Award for Outstanding Reference Source in 2000. Now expanded to three volumes, the new edition includes a fully revised and extended chronology volume, a volume of biographies, and a volume with articles analyzing key Internet issues. The set also offers many fascinating tidbits about the Internet, including the fact that the phrase surfing the Internet was coined in 1992 by librarian Jean Armour Polly in an article in the Wilson Library Bulletin. This set covers the earliest roots of the Internet, from events dating as far back as the 1800s and the invention of the telephone all the way to the founding of news agencies, the first steps toward digital computing, and the development of computing technology, telecommunications, and media. This work will be of interest to students of mass media, gender, business, and social history as well as technology. - Includes a chronology with 200 entries and sidebars that begins in the 19th century - The Chronology volume contains an extensive bibliography with hundreds of suggestions for further research - Provides a glossary of Internet-related acronyms and technological terms - The Issues and Biography volumes have lengthy Further Reading sections that follow every article

This book comprises a series of studies by a number of scholars working on what might broadly be termed the “medieval” period of the history of English, focusing on Old English, Middle English, and the relatively less well-documented period of transition from the former to the latter. The volume brings together contributions not only from a variety of fields, ranging from semantics and syntax to prosody and phonology, but also from different theoretical standpoints, in order to improve the reader’s understanding of the rapid changes that affect the language at this time. The collection of papers here should be of interest to all scholars and students working on Old or Middle English, as well as to students of historical linguistics in general, given that many of the processes and methodological parameters described here will prove to be directly applicable to the study of other periods and of other languages.

Due to increased demand, it has become more important than ever for electronic technicians and security management professionals to have a thorough, grounded knowledge of the programming, installation, and functioning of IP-addressed electronic security devices. Guide to Networking for Physical Security Systems provides this information with a practical, straightforward approach. By first providing complete explanations of IP addressing, Ethernet and Wi-Fi, internet connections, and how networks operate; this book then delves into how these technologies can be used for electronic security device applications. With guided tours of common network devices such as DSL adapters, routers, IP security cameras, and detailed explanations of the various types of video compression; readers will gain a wealth of technical information that will prepare them for work in the electronic security industry.Check out our app, DEWALT® Mobile Pro(tm). This free app is a construction calculator with integrated reference materials and access to hundreds of additional calculations as add-ons. To learn more, visit dewalt.com/mobilepro.