Re: Speedo error

["Daniel Chenault" <danielc@xxxxxxxxxxxxxxxxx>]

I have a GPS; Garmin III+. Just haven't gotten around to doing it yet.
- ----- Original Message -----
From: "Bob Sutterfield" <Bob@domain.elided>
To: "BMW Digest (E-mail)" <bmw-digest@domain.elided>
Sent: Thursday, September 07, 2000 10:46 AM
Subject: Re: Speedo error


> Borrow a handheld GPS.  Now that SA* has been turned off, you should be
able
> to check your speedo to within .1 mph - or whatever the resolution of the
> GPS's display.  Mine (a cheapie Magellan 315) updates quickly enough to be
> useful during acceleration.
>
> *SA == Selective Availability, intentional dithering that the US military
> (who owns the GPS constellation) included with the GPS signal to reduce
its
> accuracy.  The purpose was so that incoming ICBMs couldn't use GPS to hit
> your doorknob, instead they could only be assured of landing somewhere on
> your block.
> --
> Bob Sutterfield
> '87 E30 325iS
> BMWCCA #169277 Rocky Mountain Chapter
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