Power

THE POWER OF POWER 

By: By 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 chip 

By: By 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 ...

Solar-powered batteries 

By: By Mary Rose Roberts

Solis Energy of Orlando, Fla., introduced its suite of solar-powered products ...

Terocelo: SDR chips will be ready for handsets next year 

By: By Donny Jackson

CMOS transceiver chips using Terocelo's patented True Software Radio technology will be available in about a year...

Giving batteries a boost 

By: By 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 battery 

By: By 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 divide 

By: By 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 CES 

By: BY 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 less 

By: BY 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 powerless 

By: BY 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 radios 

By: By 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 fancy 

By: by 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: By Jay M. Jacobsmeyer, P.E.

How external interference affects amplifier performance...

Spotlight: Amplifiers 

E-RF Wireless: This series of continuous-duty base station, link transmitter and specialized mobile radio power amplifiers are designed to operate with...

Batteries forever, fuel cells next year 

By: By Doug Mohney

If it's portable and electronic, it needs batteries. One of the byproducts of the silicon revolution has been the steadily growing appetite for portable...

Essential Reading

When silence isn't golden

Radio vendors hear public safety's cry

A long way to go

A word to the wise

700 MHz auction isn't time for greed

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