[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.
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 ...
> datalude: information security
> e: jim at datalude.com
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