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22nd January 2008 | 09:40

#13 (permalink)

Sallyann1234

Joined: Feb 2007

: PPL

Posts: 636

Likes: 792

From: England

There is a network of accurately surveyed sites in the UK where you can check your GPS unit. If you want to know more about the subject I strongly recommend this site:
http://www.ordnancesurvey.co.uk/oswe...ing_osnet.html

Here's a direct link to the site database:
http://gps.ordnancesurvey.co.uk/passivedatabase.asp

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