SDR Forum taps vendor for reference waveform 

The Software Defined Radio Forum has selected Chelmsford, Mass.-based Mercury Computer Systems to develop a reference waveform for the military's Software...

Wireless data trial is a gas 

BY JIM BARTHOLD

The telecommunications industry frequently uses a pipe analogy to describe data transport. Twisted-pair copper, used by telephone companies, is considered...

xMAX passes FCC compliance test 

BY DONNY JACKSON

An FCC-compliant laboratory has determined that xG Technology's long-range xMAX system first demonstrated in November 2005 meets the FCC's Part 15 requirements,...

Motorola releases software for 800 MHz rebanding 

Donny Jackson

Motorola announced that it has completed the development of subscriber-unit software designed to ease 800 MHz users' transition to new spectrum via rebanding....

Error-control coding options abound 

BY JAY M. JACOBSMEYER, P.E.

Last month we covered applications and limitations of error-control codes and some of the theory behind their operation. This month we cover coding techniques....

What error-control coding can do 

BY JAY M. JACOBSMEYER, P.E.

Part 2 of 4 In the November 2005 MRT, we defined terms and introduced basic error-control coding concepts. This month we will cover some of the applications...

Distance-to-fault: It's not pass/fail 

BY DAVID KIESLING, RADIO FREQUENCY SYSTEMS

Bruce Holsted is, by his own description, a tower dog. His business, Holsted Corp., troubleshoots and repairs antennas and feed lines for a variety of...

Federal agency studies blocked signals 

By Lynnette Luna

Technological fixes sought for improving communications inside dense buildings...

Demystifying error-control coding (part 1 of 4) 

By Jay M. Jacobsmeyer, P.E.

It's the key to designing error-free communications systems. But what is it?...

xG Technology says xMAX test a success 

Officials for xG Technology said that its xMAX modulation technique delivered a broadband data rate at extremely low power in a recent battery of tests...

Wireless 911 testing must be local 

By Gregory S. Ballentine, APCO International

The accuracy of wireless 911 location data, while defined within FCC Docket #94-102, remains the topic of continued debate in both technical and political forums....

Tower-top amplifiers and noise figure (Part 2 of 2) 

By Jay M. Jacobsmeyer, P.E.

How external interference affects amplifier performance...

Spotlight: Test and measurement 

The SA-6000EX is the latest addition to the Site Analyzer antenna and cabling diagnostic tools...

Anritsu unveils spectrum analyzer 

Anritsu Co. introduced the MS2711D Spectrum Master, a handheld spectrum analyzer that delivers improved sweep speed and is designed with a built-in pre-amp...