Is Jamming Really a Problem?
I’m often asked if this is easy to do. And, yes, it is. And criminals might not want to stop at 4 Watts; ignoring the law is what makes them criminals, after all. Anyone with a basic knowledge of electronics should be able to build such a device, but you can even buy one today if you want. I’ve had second thoughts about providing the following link, but, heck, readers of this blog tend to be a pretty bright bunch and finding something like this really doesn’t take all that much work. But, anyway, click here. Want a jammer? You got it, although (fortunately) it’s not really cheap.
The real kicker is that even in the presence of a jamming signal, users might see five bars worth of signal and zero throughput. The help desk would likely be puzzled as well. The solution, of course, is a spectrum assurance (SA) tool, always monitoring for such energy, and alerting operations staff when it appears. Dealing with the threat involves localization and then what I call crowbar remediation -- finding the offending device and sending it to electronics heaven with gentle taps from a crowbar.
Want to really lose some sleep? Just how hard might it be to jam cellular or other licensed signals? Like I said, criminals really don’t care. And this implies spectrum assurance for all wireless signals and services is likely to become a core requirement over time.
— Craig Mathias is Principal Analyst at the Farpoint Group , an advisory firm specializing in wireless communications and mobile computing. Special to Unstrung