john lewis wrote:
> On Thu, 12 Jul 2007 14:29:25 +0100
> Tony Smith <tony.smith@???> wrote:
>
>>> You can then specify coordinates within those squares using
>>> eastings and northings to the required accuracy: so SU424155 is
>>> the entrance to the Zepler building where we have meetings, to
>>> 100m accuracy.
>
> If anyone is out walking the hills in white-out conditions then 100m
> accuracy is just not good enough.
>
> Even 10m would give enough error to allow you to walk over a cliff if
> you could not pinpoint your location on a map precisely.
I will point out that most GPS' will give a 10 digit location, but it is
still down to the accuracy of the fix (My handheld is ~10-15m)
--
Dean Earley, Dee (dean@???)
irc: irc://irc.blitzed.org/
web: http://personal.earlsoft.co.uk
phone: +44 (0)780 8369596
