[OSM-talk] GPS accuracy
Karl Newman
siliconfiend at gmail.com
Fri Apr 18 23:38:04 BST 2008
On Fri, Apr 18, 2008 at 9:05 AM, Jon Stockill <lists at stockill.net> wrote:
> Chris Hill wrote:
> > Over last week I've noticed that the accuracy reading on my ETrex has
> briefly gone down to 10ft a few times. Before last Saturday the best was
> 16ft. Today I saw 9ft briefly. Anyone else seen this or know what's going
> on?
>
> I've noticed I've been getting WAAS signals a lot more reliably recently
> - that'll certainly help accuracy. I'm not sure if it's some changes
> that've been made to the GPS sats, or that I've just got better coverage
> in the areas I've mapped recently.
>
> Jon
>
There's a new WAAS satellite that became active in February I think, and
people are reporting better coverage of the east coast of the US and farther
north into Canada. Of course, day to day and even hour to hour your accuracy
will vary depending on the configuration of the satellite constellation.
Karl
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