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Urgent Communications magazine is an electronic resource center for managers who plan, design, operate and maintain mobile communications, systems and basestations. News, industry updates, latest technology reviews.

The American Radio Relay League (ARRL) is the national association for amateur radio, connecting to hams around the U.S. with news, information and resources.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

ITTC (Information and Telecommunication Technology Center) is a world-class research center at the University of Kansas. Primary areas of research are bioinformatics and computational life sciences, communications and networking systems, computer sy...

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InTechOpen offers thousands of peer-reviewed free Open Access academic and scholarly articles and research papers. InTechOpen is part of InTech - Open Access Publisher...

Microwaves101.com - A practical resource covering all the fundamental principles of microwave design

Audio Systems Group, Inc. consults on acoustics and the design of sound systems for performance, worship, and other public spaces.