Antenna phasing 101 

By: BY HAROLD KINLEY

The method used to achieve antenna gain combines two or more antennas to produce an array. Redirecting or focusing the radiated electromagnetic energy...

WEB SITE SHOWCASE 

ANDREW CORP. Andrew Corp. delivers innovative and essential communications equipment and solutions that connect the world. Products focus on the entire...

Call centers prepare for the worst 

By: BY DOUG MOHNEY

Public-safety answering points represent the heart of first-responder communications. Every emergency 911 call nationwide-whether it's made by a wired...

Suppliers offer wide-ranging advice 

By: By Donny Jackson

Predictably, vendors say land mobile radio dealers' best strategies will mirror their own...

Product briefs 

By: From staff and wire reports

Handheld 7.0 GHz spectrum analyzer Anritsu recently debuted a handheld spectrum analyzer capable of measuring 802.11a, ultrawideband and WiMAX signals...

AirNet lands purchase orders worth $3 million 

By: From staff and wire reports

AirNet Communications Corp. announced it has received purchase orders valued at about $3 million for its AdaptaCell 4000 base stations and AirSite 3000...

EFJohnson partners with contract manufacturer 

By: From staff and wire reports

EFJ, Inc. announced that its EFJohnson subsidiary has entered into a contract-manufacturing partnership with Dallas-based MTI. EFJ Chairman and CEO Michael...

PRODUCT BRIEFS 

By: From staff and wire reports

Kenwood plans P25 VHF radios Kenwood Communications plans to introduce Project 25-compliant VHF portable and mobile radios. Portable handsets are slated...

PRODUCT SHOWCASE 

ANDREW CORPORATION Andrew Corporation announces three new dual duplex tower mounted amplifiers (TMAs). These easy-to-install TMAs work with any wireless...

Preventing microwave interference 

By: By Daniel Wojtkowiak, Radio Frequency Systems

Wind and other environment influences play a major role in signal distortion...

Product Briefs 

By: From staff and wire reports

Bentek intros satellite modem for remote SCADA Bentek Systems unveiled the SCADALink UNICON SAT, a satellite modem designed for SCADA applications. The...

Legalities affect signal booster use 

By: By Alan Tilles

In searching for ways to mitigate interference at 800 MHz, much attention has been focused on the use of signal boosters, or bi-directional amplifiers...

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...

How to give radio signals a boost 

By: By Harold Kinley

It's one thing to get a signal into a building, another to distribute it from top to bottom...

Product briefs 

By: From staff and wire reports

Purcell unveils modular power cabinet system Purcell Systems introduced the SiteSupport family of battery cabinets at last month's IWCE in Las Vegas....

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