Yes that's a very old map making trick ... some small feature that's
fake or slight change to a real one , so can prove copyright.
G.
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From: "wolf_dl4yhf" <[email protected]>
Sent: Friday, March 16, 2012 12:41 PM
To: <[email protected]>
Subject: Re: LF: Google maps update - Margin Of Error?
Don't trust google. There are rumors that their maps are deliberately
skewed slightly, which allows them to prove if any map is based on their
online map database.
If you can, let your GPS receiver run for a few hours (or, better, days),
and make an average to get a *precise* location. You can do that
graphically with a GPS track plotter. This way you can eliminate some of
the GPS errors, at least since SA ("selective availability") has been
turned off years ago.
Cheers,
Wolf .
Am 16.03.2012 11:55, schrieb Clive Lorton:
On 15 Mar 2012, at 20:36, Stefan Schäfer wrote:
now the locator has slightly changed. The actual antenna is now in
JN49IK00WE. Damn, now all the distances must be re-calculated ;-)
Morning LF from a lurker….
I just checked my GPS against a well defined mark on my drive in
Oxfordshire and it was spot on. But when I visited my friends house in
Southern Brittany last year there was a 22 (ish) meter error between
google and my GPS. Which is right. Which should we use.
73 to you all
Clive g8poc
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