PowerA not-so-risky investmentBy James Careless Site hardening is a must -- even for public safety agencies on a budget... THE POWER OF POWERBy Donny Jackson In most areas, wireless communications involve a series of tradeoffs. Frequency, modulation scheme, physical-layer technology and other factors influence... Atheros announces power-efficient mobile Wi-Fi chipBy Donny Jackson Semiconductor company Atheros announced it has developed a new 802.11g chip for mobile devices that will be three times more power efficient ... Terocelo: SDR chips will be ready for handsets next yearBy Donny Jackson CMOS transceiver chips using Terocelo's patented True Software Radio technology will be available in about a year... Solar-powered batteriesBy Mary Rose Roberts Solis Energy of Orlando, Fla., introduced its suite of solar-powered products ... Giving batteries a boostBy Mary Rose Roberts Over the last few months, thousands of Sony-made, lithium-ion battery packs have been recalled because of fire-safety concerns leading some to wonder... Product spotlight: The death of the batteryBy Mary Rose Roberts Prof. Zhong Lin Wang believes his team of scientists has found the source of unlimited power: nanogenerators devices that pull energy from nature and and convert it into electricity... Solar access points bridge digital divideBy Mary Rose Roberts Power traditionally has been a major challenge for wireless communications systems, particularly in rural deployments and in disaster situations where... Radio vendors intro solutions at CESBY DOUG MOHNEY The International Consumer Electronics Show has started to serve as a launching pad for radio products for both the high-end consumer and commercial/government... Delivering more while consuming lessBY DOUG MOHNEY Radio manufacturers of all types are grappling with ways to effection to get the most out of every battery charge, as users demand more features, increased... Without power, but not powerlessBY DONNY JACKSON From UHF to CDMA to GSM to Wi-whatever, the alphabet soup of the wireless industry offers numerous network options to meet virtually any communications... Survivable Communications: Much more than hardened radiosBy Donny Jackson Power. Flood resistance. Secure access. Alternative connectivity. Disaster planning. Hurricane Katrina reminds network designers and policymakers that first-responder networks rely on more than just LMR gear... On flights of fancyby Glenn Bischoff Throughout history, visionaries have been underappreciated, at least at the moment they first shared their visions. Think back to 1961, when President John F. Kennedy declared that the U.S. not only would beat the Soviet Union to the moon, but that it would do so in a decade.... Tower-top amplifiers and noise figure (Part 2 of 2)By Jay M. Jacobsmeyer, P.E. How external interference affects amplifier performance... Spotlight: AmplifiersE-RF Wireless: This series of continuous-duty base station, link transmitter and specialized mobile radio power amplifiers are designed to operate with... |
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