[gps-talkusers] e: Re: WAAS IN UK

Hi Richard Carl and list
I receive the WAAS alert from time to time also h dop 1,0 v dop 1,2 and and accuracy of about 14-15 feet. it usually occurs at the coast or when i'm working up in Teesdale or Weardale at altitudes of 800 to 1200ft but have received WAAS here in Darlington ne England (300ft).
I find poi's much more accurate when WAAS is working, I still use the earthmate gps receiver, Has anyone experience that any of the newer receiver's work better on trains with heavily tinted windows. 
By the way I would choose "Enhanced" as the term.
Regards Gavin

Gavin Atkins,
tel: M 07702:051633,
Email: gavin.atkins@xxxxxxxxxx



----- Original Message -----
From: Charles LaPierre <charles@xxxxxxxxxxxxxxxx
To: gps-talkusers@xxxxxxxxxxxxx
Date sent: Wed, 29 Nov 2006 15:06:38 -0800
Subject: [gps-talkusers] Re: WAAS IN UK



Hello Richard and list,
Sorry about the "WAAS" confusion, Mike experienced 
some of this too
while in Australia and New Zealand last week, and 
we are still trying
to figure out where the differentially corrected 
signals were originating from.
When the GPS receiver returns that the receiver 
Mode or "Quality of
GPS fix" is a "2" it means the fix has been 
"corrected" by some
means. In the USA / Canada it means "WAAS" in 
Europe it means
"EGNOS" but currently we just say "WAAS" for 
anything corrected.  We
will be changing this in the future to have a more 
generic term
instead of "WAAS" since we have no idea "how" the 
receiver got its
differential correction. All we know is that if 
we get a quality of

1 it means no corrections, and 2=corrected.
So what do you all think about a new term that 
means we are receiving
corrected GPS data that should be slightly more 
accurate?  Any
idea's? Instead of saying "WAAS" what should we 
say?

"Enhanced", "Corrected", "DGPS"??



Thanks
Charles.



At 02:32 PM 11/29/2006, you wrote:

Hi,
I had an interesting experience this afternoon in 
that, for the
first time ever in the UK, I received the message 
'WAAS, 11

satellites' or words to that effect!
Firstly, I didn't think WAAS was available in 
Europe and, secondly,
didn't realise that its equivalent (is it EGNOS?) 
was enabled.
Did I receive the WAAS message because it had 
detected EGNOS?  If
so, would there be much work involved in changing 
the message to
reflect the system being used? If not, any 
explanation as to why I

received the message?
The only other time I've seen this message was 
last week when I was
in San Francisco; could this be related, eg the 
software retained

some form of history?
Finally, I don't have a Holux receiver bought from 
Sendero so don't
have the firmware changed to permanently enable 
WAAS; therefore, can
someone remind me, please, what difference this 
makes?
So, here's looking forward to even more accurate 
reception!


Regards



Richard Bartholomew
E-Mail:
<mailto:richard_bartholomew@xxxxxxxxxxxxxxxx>richa

rd_bartholomew@xxxxxxxxxxxxxxxx


Charles M.  La Pierre CTO
Sendero Group, LLC



Lat.  37 15' 25" N  Lon: 121 53' 04" W

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