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PostPosted: Wed Sep 03, 2008 11:12 pm 
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Capt Taxi wrote:
Er.what happens if there is a problem with the GPS system during those two $odding weeks?

You mean like if the yanks re-task all the satellites because they are going to start another war........?

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PostPosted: Wed Sep 03, 2008 11:19 pm 
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gusmac wrote:
You mean like if the yanks re-task all the satellites because they are going to start another war........?


Depends who with.....if they have a go at the French....it wont be an issue :lol:

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PostPosted: Thu Sep 04, 2008 9:26 am 
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gusmac wrote:
Capt Taxi wrote:
Er.what happens if there is a problem with the GPS system during those two $odding weeks?

You mean like if the yanks re-task all the satellites because they are going to start another war........?


they dont need to, the USA used GPS+satellites for cruise missile attacks, most went to the house next door to the target, but given the 1/4 mile blast radius they still made the kill


PLUS, did you know good old GB has a plan to send up satellites which will be subscription only and get the USA to switch theirs off for free access?....

oh dear, ebay will have a sudden increase in tom tom sales then!

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PostPosted: Thu Sep 04, 2008 11:47 am 
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Firstly, how can the UK get the yanks to switch off their sats as it is a world wide network.
Also I would not be too bothered with the 2012 olys, as if they could not get the Wembly stadium finished in time. What chance do we have with the 2012 fiasco? :lol:

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PostPosted: Thu Sep 04, 2008 1:16 pm 
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wannabeeahack wrote:
PLUS, did you know good old GB has a plan to send up satellites which will be subscription only and get the USA to switch theirs off for free access?....
Not technically possible. The same satellites which are in range of this country also cover the whole of Europe and Africa, as well as parts of the middle East, Asia and most of the Atlantic ocean.
If they switched off access to the UK, the system would work poorly or not at all across a very large part of the world.

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PostPosted: Thu Sep 04, 2008 2:09 pm 
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what can be switched ON.....can be switched OFF


Following the shooting down of Korean Air Lines Flight 007 in 1983, President Ronald Reagan ISSUED A DIRECTIVE making the system available free for civilian use as a common good. SINCE THEN, GPS has become a widely used aid to navigation worldwide, and a useful tool for map-making, land surveying, commerce, scientific uses, and hobbies such as geocaching. GPS also provides a precise time reference used in many applications including scientific study of earthquakes, and synchronization of telecommunications networks.


a frequency shift, a bit of encryption, and bingo - blank tom tom screens...
its their cricket/baseball bat, and they can take it home...

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PostPosted: Thu Sep 04, 2008 2:17 pm 
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European Galileo Navigation System

There will be four different navigation services available:

* The Open Service (OS) will be free for anyone to access.

* The encrypted Commercial Service (CS) will be available for a fee and will offer an accuracy of better than 1 m.

* The encrypted Public Regulated Service (PRS) and Safety of Life Service (SoL) will both provide an accuracy comparable to the Open Service. Their main aim is robustness against jamming and the reliable detection of problems within 10 seconds. They will be targeted at security authorities (police, military, etc.) and safety-critical transport applications (air-traffic control, automated aircraft landing, etc.), respectively.

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PostPosted: Thu Sep 04, 2008 2:18 pm 
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The sense of the meeting was that the Pentagon should abandon the option of reducing the accuracy of civilian GPS in future, mainly due to the huge number of civilian applications - many of which are economically or safety critical.

The 30 GPS satellites currently in orbit provide accuracy within 10 metres to civilian users in most circumstances, and receivers can often get a fix even with significant portions of the sky obscured. The US Air Force, which administers GPS, is only required to maintain 24 satellites in operation, and many panel members were concerned that the fleet could reduce to this number in future. It was said that users have become accustomed to the service offered by 30 satellites, and the consequences of a reduction to 24 would be problematic.

At present, GPS includes a feature called Selective Availability (SA), by which the accuracy of the civilian signal can be degraded. SA was turned off in May 2000 on the orders of President Clinton, but it could be turned back on again at any time. Many members of the panel said this feature should be dispensed with altogether.

President Clinton gave a firm undertaking not to degrade GPS in 2000, but in 2004, President Bush qualified this somewhat, saying that the US would "improve capabilities to deny hostile use of [satnav], without unduly disrupting civil and commercial access to [GPS] outside an area of military operations, or for homeland security purposes..."

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PostPosted: Thu Sep 04, 2008 2:19 pm 
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http://www.wordinfo.info/words/index/in ... _unit/3931

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PostPosted: Thu Sep 04, 2008 2:23 pm 
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wannabeeahack wrote:
what can be switched ON.....can be switched OFF


I'll say it slowly this time........yes it can be switched off....or encrypted...or made less accurate.....

but.......it can't be done in just one country....not without seriously affecting the operation of the system in neighbouring countries .........and affecting an area covering at least a quarter of the planet.......

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PostPosted: Thu Sep 04, 2008 2:51 pm 
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gusmac wrote:
wannabeeahack wrote:
what can be switched ON.....can be switched OFF


I'll say it slowly this time........yes it can be switched off....or encrypted...or made less accurate.....

but.......it can't be done in just one country....not without seriously affecting the operation of the system in neighbouring countries .........and affecting an area covering at least a quarter of the planet.......


er, what does "EUROPEAN space agency" imply?...

you know damn well HMG+EU rules state we cant have freebies, 20 million subscriptions to Euro-GPS at £10 a month = £200 mill a month x 17.5% vat = how much? collected in vat a year....nice...

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PostPosted: Thu Sep 04, 2008 3:03 pm 
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wannabeeahack wrote:
gusmac wrote:
wannabeeahack wrote:
what can be switched ON.....can be switched OFF


I'll say it slowly this time........yes it can be switched off....or encrypted...or made less accurate.....

but.......it can't be done in just one country....not without seriously affecting the operation of the system in neighbouring countries .........and affecting an area covering at least a quarter of the planet.......


er, what does "EUROPEAN space agency" imply?...

you know damn well HMG+EU rules state we cant have freebies, 20 million subscriptions to Euro-GPS at £10 a month = £200 mill a month x 17.5% vat = how much? collected in vat a year....nice...


The Europeans have no jurisdiction outside their own borders. They can't stop the Americans, Russians, Chinese or anyone else's system.

The Yanks can't disable access to Europe without cutting off almost all of Africa, not to mention the western part Asia, the Middle east and the Atlantic (including some parts of the US) as well.
It simply can't be done on a country by country basis, despite any conspiracy theories you may have been reading.

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PostPosted: Thu Sep 04, 2008 3:04 pm 
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a satellite signal footprint knows of no border limitations, look at sky tv in malags "uk pubs" lol

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PostPosted: Thu Sep 04, 2008 3:05 pm 
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wannabeeahack wrote:
a satellite signal footprint knows of no border limitations, look at sky tv in malags "uk pubs" lol
Thats why it cant be done.

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PostPosted: Thu Sep 04, 2008 3:07 pm 
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gusmac wrote:
wannabeeahack wrote:
a satellite signal footprint knows of no border limitations, look at sky tv in malags "uk pubs" lol
Thats why it cant be done.


no, thats why it CAN be done

uncle sam freebie off

euro pay per view on

kerching

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