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 EU launches free satellite system to fine-tune GPS
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Dewi

623 Posts

Posted - 01 oct. 2009 :  16:29:51  Show Profile  Reply with Quote
BRUSSELS (Reuters) - The European Union launched a free satellite navigation network on Thursday that could help pilots, drivers and blind people by fine-tuning the accuracy of the U.S. global positioning system (GPS) to around 2 meters.
http://tech.yahoo.com/news/nm/20091001/tc_nm/us_eu_transport_satellite_2

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gpspassion

93886 Posts

Posted - 01 oct. 2009 :  17:02:14  Show Profile  Visit gpspassion's Homepage  Reply with Quote
Unless I'm missing something it seems someone got confused at Yahoo, EGNOS has been available for years, it's the European version of SBAS, the North American version being SBAS, there is an article on the portal about it : http://www.gpspassion.com/fr/articles.asp?id=185

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Dewi

623 Posts

Posted - 01 oct. 2009 :  17:24:38  Show Profile  Reply with Quote
Yes, the Yahoo story is off the mark. The following from ESA clarifies that today marks the official start of operations for EGNOS "Open Service".

EGNOS ‘Open Service’ available: a new era for European navigation begins today

1 October 2009
During a press conference today, Mr Antonio Tajani, European Commission Vice-President for Transport Policy, announced the official start of operations for EGNOS, the European Geostationary Navigation Overlay Service. The EGNOS ‘Open Service’ is now available.

This is a major milestone for the project: its primary service is now available to all users equipped with EGNOS-compatible receivers. Most mass-market satellite navigation receivers being sold today are ready for EGNOS.

EGNOS is a satellite-based augmentation system that improves the accuracy of satellite navigation signals over Europe. The system consists of transponders aboard three geostationary satellites over the eastern Atlantic Ocean and Europe, linked to a network of about 40 ground stations and four control centres.

The EGNOS ground stations receive signals sent out by the US GPS satellites. Information on the accuracy and reliability of these signals is relayed to users via the geostationary satellite transponders. This allows them to determine their position to within two metres, compared with about 20 metres for GPS alone. The Open Service is provided free of charge.

EGNOS is the first pan-European navigation satellite system. It was developed as a joint project by ESA, the European Commission (EC) and Eurocontrol, the European Organisation for the Safety of Air Navigation.

ESA had overall responsibility for the design and development of the EGNOS system and placed a contract with a consortium led Thales Alenia Space, France, to develop the system. After completing development, the EGNOS system was handed over to the EC on 1 April.

EC now owns and manages the EGNOS system. ESA is the design and procurement agent through a delegation agreement with the EC.

The European Satellite Services Provider, ESSP SaS, founded by seven air navigation services providers and based in Toulouse, France, manages EGNOS operations. A contract between the EC and ESSP SaS was signed on 30 September. The contract provides for the management of EGNOS operations and the maintenance of the system until the end of 2013.


http://www.esa.int/esaNA/SEM2HGF280G_egnos_0.html

Edited by - Dewi on 01 oct. 2009 17:26:09
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gpspassion

93886 Posts

Posted - 01 oct. 2009 :  17:36:46  Show Profile  Visit gpspassion's Homepage  Reply with Quote
Ok, so it's the "official" launch, wonder if that means better accuracy, I somehow doubt it since SBAS has been "official" for years and has been able to give 1 to 2 meter improvements, which makes a big difference when you have the proper equipment to have 5 meter accuracy (chokering antennas for instance), much less when you're down to 20 meters in town with a consumer GPS ;-)

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gekko

19 Posts

Posted - 02 oct. 2009 :  08:15:26  Show Profile  Reply with Quote
Hi gpspassion, do you have any information of any TomTom devices that support EGNOS? There seems to be different opinions around the net...
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gpspassion

93886 Posts

Posted - 02 oct. 2009 :  14:57:52  Show Profile  Visit gpspassion's Homepage  Reply with Quote
No, but EGNOS in particular and SBAS in general is totally irrelevant for road navigation so I wouldn't worry about it, details here http://www.gpspassion.com/fr/articles.asp?id=185 and there is a dedicated topic linked over there if you want to discuss the merits of SABS further.

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