Garmin GPS 12 Location Error

Whilst doing some GeoCaching today I noticed that me GPS was 0.32 miles out
on both of the locations we went to! I doubled checked the coordinates, and
their settings, I had loads of clear satellites & good accuracy! Can anyone
explain why? I was set to OS Grid &WGS 84.

Any help would be appreciated

Thanks

Jon

ahhh that would be it, reset the datum to ord survey GB and that solved
it!!! Dooow

many thanks

Jon


"Ian Wilson" <scobloke2@infotop.co.uk> wrote in message
news:bi8qpg$l3o$1@titan.btinternet.com...
> Jon wrote:
> > Whilst doing some GeoCaching today I noticed that me GPS was 0.32 miles
out
> > on both of the locations we went to! I doubled checked the coordinates,
and
> > their settings, I had loads of clear satellites & good accuracy! Can
anyone
> > explain why? I was set to OS Grid &WGS 84.
>
> WGS84 is the wrong datum for the OS GB grid. Assuming thats what you
> mean by "OS Grid".
>
> On my Garmin Geko:
> Position Format: British
> Map Datum: Ord Srvy GB
>
> In "GPS Trackmaker"
> Coordinate System: British National Grid
> Datuum: OSGB 1936(GPS)
>
> etc.
>