On Sat, Jan 2, 2010 at 8:17 AM, Aun Johnsen <li...@gimnechiske.org> wrote:
> The accuracy shown on your GPS unit is not necessary the actual accuracy, > but just a calculated accuracy depending on the signals your unit is > receiving. You can experience athmospheric disturbance, plasma-effects, > signals reflected off tall buildings, canyon or urban canyon effects, bed > satellite constillations etc. If you have SBAS (WAAS/EGNOS) activated you > might see an improvement in the signal, but mind that if you are outside the > official coverage of such systems you might experience that these > corrections are in fact increasing the error. If you have access to > When I looked up WAAS on wikipedia a while ago, it appeared that we do have an equivalent system in Australia (although the term WAAS is american), but I'm not sure how to tell whether it's functioning in a given area. I switched the WAAS capability on the GPS on, but again, I don't know if it's actually doing anything. Steve
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