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Re: Why Don't We Have Land Based Positioning Systems?

Cross-posted to 2 groups.

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On Sun, 26 Jul 2015 09:16:35 +0200, Thomas Heger wrote:


> 
> So, why should the US-military allow or build competing systems to GPS, 
> that they exclusively control?
> 

For one thing, GPS is able to be jammed or otherwise subject to a
deliberate interference and this would constitute a serious threat
to US military operations.

The Chinese are said to be devoting much resources to jamming GPS
and US satellite links in general.  They realize that the US
military is thoroughly dependent on satellite communication
and navigation.  To thwart GPS would be a great advantage to them.

For the US military GPS is perhaps its greatest weakness.

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Re: Why Don't We Have Land Based Positioning Systems? Thomas Heger <ttt_heg@web.de> - 2015-07-26 09:16 +0200
  Re: Why Don't We Have Land Based Positioning Systems? Fabian Russell <root@localhost.localdomain> - 2015-07-26 07:45 +0000
  Re: Why Don't We Have Land Based Positioning Systems? Henry Wilson DSc. <hw@....> - 2015-07-29 07:45 +1000

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