+Flyingcompass Posted January 12, 2012 Share Posted January 12, 2012 I have WAAS set ON on my eTrex H, in order to make use of the EGNOS system. Im currently located inside a very high RF environment building so havent noticed any effect (i'll be taking it outside in a little while), Does the eTrex H indicate in any way onscreen that WAAS/EGNOS corrections are being applied? Quote Link to comment
+webscouter. Posted January 12, 2012 Share Posted January 12, 2012 If it is like other Garmin models it will show a D on the bottom of the signal strength bars on the satellite page. Quote Link to comment
+Flyingcompass Posted January 12, 2012 Author Share Posted January 12, 2012 Cheers, i'll look out for such an indication. Quote Link to comment
+Flyingcompass Posted January 12, 2012 Author Share Posted January 12, 2012 My take on the use of SBAS (Satellite Based Augmentation Systems), is that theyre not intended to improve accuracy per se, but rather to help eliminate random fluctuations in accuracy due to ionospheric disturbances. In reality, this is only really of great import in aviation use, but since my unit has the ability, and i doubt its enabling has any great detrimental effect on battery life, i think having it on is sensible. It may help a little to stabilise the unit when in the sort of high Radio Frequency energy environs i often find myself in! For what its worth, I didnt see any indication of the SBAS capability in use, so suspect that such a basic unit probably doesnt give any explicit indication of it. Quote Link to comment
+Genoist Posted January 18, 2012 Share Posted January 18, 2012 I, personally, DO see an improvement from use of WAAS. My understanding is, since the satellites are in geostationary orbit, that the closer you are the the equator, the more WAAS will help you. I live in Central Florida, so I'm closer to the equator than the UK is, so that could be why I see more improvement than sussamb and Flyingcompass. I used to live in Indiana, and I left WAAS off on my eTrex Vista, Magellan Meridian Green, and Garmin Colorado 500t because it seemed to degrade my location accuracy and consistency. Quote Link to comment
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