[talk-ph] GPS article

Rally de Leon ralleon at gmail.com
Tue Mar 8 04:08:42 GMT 2011


what if it was intentional (signal-jamming experiment)? like what North
Korea is doing to South Korea.
http://newsinfo.inquirer.net/breakingnews/world/view/20110306-323798/N-Korea-jammed-S-Korea-GPS-devices

On Tue, Mar 8, 2011 at 9:52 AM, Jim Morgan <jim at datalude.com> wrote:

> A general GPS tech article, rather than a mapping-related one, but I
> thought it might be interesting anyway.
>
>
> IT WAS just after midday in San Diego, California, when the disruption
> started. In the tower at the airport, air-traffic controllers peered at
> their monitors only to find that their system for tracking incoming planes
> was malfunctioning. At the Naval Medical Center, emergency pagers used for
> summoning doctors stopped working. Chaos threatened in the busy harbour,
> too, after the traffic-management system used for guiding boats failed. On
> the streets, people reaching for their cellphones found they had no signal
> and bank customers trying to withdraw cash from local ATMs were refused.
> Problems persisted for another 2 hours.
>
> It took three days to find an explanation for this mysterious event in
> January 2007. Two navy ships in the San Diego harbour had been conducting a
> training exercise. To test procedures when communications were lost,
> technicians jammed radio signals. Unwittingly, they also blocked radio
> signals from GPS satellites across a swathe of the city.
>
> Continues ...
>        <
> http://www.newscientist.com/article/dn20202-gps-chaos-how-a-30-box-can-jam-your-life.html?full=true&print=true
> >
>
>
> --
>
>   datalude: information security
>   e: jim at datalude.com
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