Re: Speedometer error
- From: Tegger <invalid@xxxxxxxxxxx>
- Date: Mon, 23 Nov 2009 19:03:44 +0000 (UTC)
Dillon Pyron <invaliddmpyron@xxxxxxxxxxxxx> wrote in
news:gbjhg5taanhs2lvgc7jktvs0grhlf8t59v@xxxxxxx:
Thus spake Tegger <invalid@xxxxxxxxxxx> :
GPS's are not definitively accurate. There is a fairly large built-in
error in all GPS's. GPS satellites are the property of the US
Department of Defense, and the military doesn't want you having the
same thing they've got for reasons of national security. This is
outlined in all the new-car PDI docs issued by Honda for vehicles that
have NAVI.
Way incorrect. SA/CA went out long ago. During Desert Storm they had
to disable it because the DoD couldn't get enough MilSpec GPS units
and was buying civilian units from Magellan.
Then how come all the 2010 PDI docs say this?:
"The GPS (global positioning system) satellites used by the navigation
system are operated by the U.S. Department of Defense. For security
reasons, certain inaccuracies are built into the GPS. This can cause
occasional positioning errors of up to several hundred feet. If the
navigation system indicates your position incorrectly, wait several seconds
until it corrects itself. The system may also correct itself after you make
a turn or cross a road."
If your reported location is incorrect, then it stands to reason that
reported distances may be incorrect as well.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
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