Category Archives: RF/Wireless

802.11 to the nth Degree

Posted on January 26, 2012 by John Donovan

It seems like every major wireless protocol is coming out with a variant that can make it under the low-power limbo bar. Bluetooth has spawned Bluetooth Low Energy and ZigBee now has a low-power healthcare profile. Not to be outdone, … Continue reading →

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Narrowbanding

Posted on February 19, 2010 by John Donovan

A fellow ham operator who, like me, is involved in emergency communications, forward an article that Glen Bischoff of Urgent Communications magazine just published titled What to Do About Narrowbanding? I’ve been too focused on short-range wireless to have followed … Continue reading →

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The RF Challenge in Portable Designs

Posted on July 21, 2009 by John Donovan

In simpler times most designs were digital. Add a few converters to handle I/O and you could ship the product. Consumer electronics—and cell phones in particular—changed all that. Now there are few consumer designs that don’t involve a large analog/mixed-signal … Continue reading →

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