If you ever wondered why your GPS wasn't quite accurate read the first para below...
Lenny Shaffer <[EMAIL PROTECTED]> wrote: Bill Clinton had the "SA" (selective availability) turned off. It was an intentional degradation of the accuracy of civilian GPS due to the military's fears than foreign powers could use our GPS signals to guide their bombers and rocket to US targets...like a 500 kiloton nuke cares that it's off by 500' or so. Accuracy now for normal GPS recievers is within 25-30'. My boat Lowrance GPS built before the SA was turned off was accurate to 1/10 mile. now I can run down buoys. At 05:04 PM 3/6/2007 +0000, you wrote: >Are you SURE it's Google that's off? I've heard (but don't know for >sure) that "civilian" use of the GPS satellites has an error >purposely introduced, in order to insure that only the military has >the EXACT coordinates at any one time. > >Oh well, as you say, it's good enough for our work > >Al Gentile > > > >--- In [EMAIL PROTECTED], "Scott Solar" <[EMAIL PROTECTED]> >wrote: > > > > While google earth is REALLY good I would not call it EXACT, > > > > I do geocaching and google earth matches my handheld GPS MOST of >the time > > but in some areas (no guessing where ahead of time) it is off by as >much as > > 100 feet. > > > > That said this is REALLY GOOD for our mounts. > > > > On 3/5/07, boca_raton_al <[EMAIL PROTECTED]> wrote: > > > > > > Hi, all. (First post to this group). > > > > > > Just want to pass along a simple way to find the exact latitude >and > > > longitude of your viewing site. > > > > > > I use Google Earth (downloaded free - directions below) and >visually > > > navigate to the exact spot I'll be viewing from. Google Earth maps > > > (most of) the entire Earth in hi-res satellite photos. > > > > > > Navigate to your viewing site, put the cursor on the location, and > > > Earth will display the EXACT coordinates of that location, right >down > > > to seconds to 2 decimal places (e.g. my favorite viewing location >in > > > Boca Raton is: 26°25'50.15 N, 80°13'3.79"W). > > > > > > To get Google Earth, go to www.Google.com. Click on 'More...', >click > > > on 'Even More ...", and select 'Earth' (note: MONDO download). > > > > > > Al Gentile > > > > > > > > > > > > > > > > > -- > > Salud; > > Scott S > > > > "Be Strong and Prosper" /me > > > > "I'm a great believer in luck, and I find the harder I work the >more I have > > of it." > > /Thomas Jefferson > > > > > > [Non-text portions of this message have been removed] > > > > > > > > >Yahoo! Groups Links > > > Clear skies- Lenny Your Murphy's Law of the Week: "The longer it's been since you cleaned house, the more likely it is that mother will visit" Astronomy and CCD Pages: http://www.intercom.net/user/shaffer/astronomy_and_ccd.html NexStarGPS and Links Page: http://www.intercom.net/user/shaffer/nexstar11.html [Non-text portions of this message have been removed] --------------------------------- Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. [Non-text portions of this message have been removed]
