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EGNOS goes live
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Darren
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PostPosted: Thu Oct 01, 2009 10:33 pm    Post subject: EGNOS goes live Reply with quote

pocketgpsworld.comAt a press conference today, European Commission Vice-President for Transport Policy, Mr Antonia Tajani, announced the official start of EGNOS operations.

EGNOS (the European Geostationary Navigation Overlay Service) has been operating in a test phase since 2006 and the news that it is at last available to all users with EGNOS compatible GPS receivers is long overdue.

American users have had their equivalent service WAAS (Wide Area Augmentation Service) for some time and the Japanese are developing their version called MFAS (Multi-Functional Satellite Augmentation System).

EGNOS uses an augmentation system consisting of transponders aboard three geostationary satellites in position over Europe and the Eastern Atlantic. These satellites are linked to a network of 40 ground stations and four control centres.

EGNOS improves GPS accuracy from approx 20m to close to 2m and the open service is provided free of charge.

Developed as a pan-European project between ESA, the European Commission and Eurocontrol. The European Commission is responsible for management of the service.
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NickG
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PostPosted: Fri Oct 02, 2009 9:49 am    Post subject: Reply with quote

So, have receivers already been taking advantage of Egnos, or were they waiting for the "test bit" to be turned off and the signal to go live? Do things like SirfStarIII, MBlox, and iPhone chipset support this channel?
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Darren
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PostPosted: Fri Oct 02, 2009 11:40 am    Post subject: Reply with quote

Many chipsets have been able to take advantage but most were software disabled. Garmins have been able to make use of WAAS & EGNOS for some time but the service was intermittent and unreliable (EGNOS that is).

I don't have a list of what supports it but currently I'd expect only devices such as handhelds and some BT GPS receivers. Hopefully now it's live we can expect all devices to take advantage of the additional accuracy now available.
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Wazza_G
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PostPosted: Fri Oct 02, 2009 11:57 am    Post subject: Reply with quote

Do you reckon that TomTom will release a firmware to take advantage of the new system?

I hope so.
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PaulB2005
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PostPosted: Fri Oct 02, 2009 4:04 pm    Post subject: Reply with quote

Looks like the Columbus V-900 used a by few people here is EGNOS capable.
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Duddy
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PostPosted: Fri Oct 02, 2009 4:26 pm    Post subject: Reply with quote

Wazza_G wrote:
Do you reckon that TomTom will release a firmware to take advantage of the new system?

I hope so.


Wazza_G
Optimist. Do you believe in flying pigs as well.
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pcaouolte
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PostPosted: Fri Oct 02, 2009 4:49 pm    Post subject: Reply with quote

Would it, in practice, make any difference to a tomtom? The tomtom software 'snaps' your location to the nearest road and in my experience almost always picks the correct one.
The EGNOS system uses geostationary satelites located over the equator, these appear fairly low in the sky in the UK and would be more easily blocked by high buildings than the GPS satelites which orbit from pole to pole.
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Darren
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PostPosted: Fri Oct 02, 2009 5:17 pm    Post subject: Reply with quote

Whilst the EGNOS SV's are on the equator they have coverage that should be more than good enough to reach even the farthest Norther parts of the UK.

But EGNOS is intended for aviation, not hikers, mariners or car drivers and so any benefits of the increased accuracy are of little relevance to vehicle satnav.
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oxford_guy
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PostPosted: Fri Oct 02, 2009 6:13 pm    Post subject: Reply with quote

In theory my Garmin eTrex Vista Hcx supports Egnos (there is a setting to turn it on), does this announcement mean I will now be able to benefit from this without a firmware update (am on firmware 3.1)? Thanks
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Darren
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PostPosted: Fri Oct 02, 2009 6:15 pm    Post subject: Reply with quote

Yes.
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PaulB2005
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PostPosted: Fri Oct 02, 2009 6:30 pm    Post subject: Reply with quote

As does / did my Streetpilot i3 but not my TT740 (apparently). Not sure about the 765.
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mhb
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PostPosted: Sat Oct 03, 2009 5:49 am    Post subject: Reply with quote

As far as MemoryMap is concerned, I have noticed that since EGNOS became fully functional, when leaving my device in a static position for sometime, the current position indicator red circle no longer moves around on the map to the same extent that it used to. Now I have only had chance to test this twice so far so obviously this phenomenon could be caused by many other factors. However could this be the result of better accuracy using EGNOS? The GPS chip used is the Sirf 3.
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Wazza_G
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PostPosted: Sat Oct 03, 2009 1:07 pm    Post subject: Reply with quote

Duddy wrote:
Wazza_G wrote:
Do you reckon that TomTom will release a firmware to take advantage of the new system?

I hope so.


Wazza_G
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lbendlin
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PostPosted: Sun Oct 04, 2009 12:12 am    Post subject: Reply with quote

Darren wrote:
Whilst the EGNOS SV's are on the equator they have coverage that should be more than good enough to reach even the farthest Norther parts of the UK.


Not so fast. I remember we had a discussion a few years back when EGNOS was just starting in test mode that some Scottish police guys had problems locking onto the DGPS signal.
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culzean
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PostPosted: Wed Oct 07, 2009 5:33 pm    Post subject: Reply with quote

My garmin Streetpilot C510 has WAAS/EGNOS capability (that is one of the reason I bought it) - and has had for the last 3 years, pity it has taken so long to be able to use it - - - - - - - - .
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