what is WAAS ??

[lanason]

Last wekend at Mercury I bort a GPS 72 - and it has WAAS

Should I be happy with this feature ??

<hr width=100% size=1>Adrian
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[EME]

Yes

<A target="_blank" HREF=http://www.garmin.com/aboutGPS/waas.html>http://www.garmin.com/aboutGPS/waas.html</A>

<hr width=100% size=1><font color=blue>I am WHAT I say I am</font color=blue>

 

[lanason]

Re: Yes

so basiically a load of B*ll*x unles you live in North America then.


<hr width=100% size=1>Adrian
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[rickp]

Re: Yes

No - not just for Americans, it works in the UK, but you need a good view of the skyline, as the satellite is above the Atlantic somewhere. Should be good at sea, but less so in a town (for instance).

Certainly my new Garmin GPS is reporting that its getting WAAS fixes.

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[ccscott49]

Re: Yes

When does the european one become operational? Not that it matters to me, 15 meters is close enough for me.

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[rickp]

Re: Yes

EGNOS is supposed to go live in April 2004, but its currently in testing.

See <A target="_blank" HREF=http://www.pocketgps.co.uk/egnos.asp>http://www.pocketgps.co.uk/egnos.asp</A> for more information.

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[Steve_D]

Re: Yes

In the Garmin blurb they make the following statement

"...How much better? Try an average of up to five times better..."

What does that mean!!!??? my limited grasp of the english language would indicate that it doesn't actually mean a thing!

BTW I really like Garmin kit and would always buy/recommend it but this looks like it was written by their marketing seudo science babble dept'

REgards

Steve D

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[Baltimore_Bill]

Its probably just technology needed by the military so they can hit Civilian targets with better accuracy.

My WAZ and EggNog free Navman 900 has managed to find Chichester Marina every time I've asked it to - So Far...






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[burgundyben]

never mind a gps in the soent, entirely un needed, but, did you sort your alternator belt?

<hr width=100% size=1>Wanted - Austin Healey 110/6 or 3000 to rebuild, LHD considered.

 

[burgundyben]

never mind a gps in the solent, entirely un needed, but, did you sort your alternator belt?

<hr width=100% size=1>Wanted - Austin Healey 110/6 or 3000 to rebuild, LHD considered.

 

[BrendanS]

Re: Yes

If you <A target="_blank" HREF=http://www.gpsinformation.net/waasgps.htm+waas&hl=en&ie=UTF-8>click here</A> and scroll down towards bottom of page, they suggest that WAAS can actually degrade the accuracy of GPS in the UK. So turn it off.

The reason is that WAAS works by ground receiver stations working out what the local error is, and bouncing that back to the satellites so they can issue local corrections. As there are currently no error correction stations in the UK, the correction information your GPS is receiving is not local at all, and is quite likely to banajax your position.

There is a fantastic site that Tome pointed out to me <A target="_blank" HREF=http://www.trimble.com/gps/index.html>http://www.trimble.com/gps/index.html</A> which explains very clearly how gps and waas operate. It takes about 15mins to go through the whole thing, but it's well worth it.


<hr width=100% size=1>Err, let me know if Depsol enters the forum, I'll go and hide