There is expected to be improved gps accuracy in a few years time in Australia but unsure if usual gps units used by the public will show improved results but I expect they will. http://www.ga.gov.au/news-events/news/latest-news/ceo-statement-on-budget-2018-19
> On 12 Jun 2018, at 12:56 PM, Andrew Harvey <andrew.harv...@gmail.com> wrote: > > If you use RTK https://en.wikipedia.org/wiki/Real-time_kinematic > <https://en.wikipedia.org/wiki/Real-time_kinematic> you should get centimeter > accuracy, but expect to pay $10k+. > > https://www.swiftnav.com <https://www.swiftnav.com/> seems like a cheaper > option but not sure if it works in Australia and it not a consumer device, > seems they just sell the boards. > > ...once you obtain sub-meter accuracy, keep in mind the whole continent is > moving so even if you had no error in your GPS, a node someone entered in OSM > in 2007 from GPS would be almost a meter out from someone entering it into > OSM today. > > The SBAS trial was only aviable to selected people as part of the trial, does > anyone know if it'll will work on regular devices, or will we need to run > additional software, for Android, iOS? > > On 12 June 2018 at 12:39, Alex Sims <a...@softgrow.com > <mailto:a...@softgrow.com>> wrote: > Hi, > > > > I’m really wanting to have better accuracy from GPS for use with > Openstreetmap. I can use survey marks and a laser rangefinder, but having a > portable GPS would make so much easier to fix errors where objects have been > armchair mapped or even GPS mapped with errors up to 3 meters. > > > > I have tried three approaches > > QZSS – I can see this on my Android mobile phone but it doesn’t seem to be > used. It seems as though I need a Japanese market device and even then I’m > not sure I’ll get an increase > Galileo – looks promising but when I’ve tested on supported devices (friends > who have recent phones) the accuracy isn’t delivered. Further investigation > shows that there aren’t enough satellites in service yet most of the day to > give 4 visible. (Using GNSS View http://qzss.go.jp/en/ > <http://qzss.go.jp/en/> English text) > Lastly the SBAS trial from Geoscience Australia - > http://www.ga.gov.au/scientific-topics/positioning-navigation/positioning-for-the-future/satellite-based-augmentation-system > > <http://www.ga.gov.au/scientific-topics/positioning-navigation/positioning-for-the-future/satellite-based-augmentation-system> > - nothing magical has happened with any of the consumer grade devices I have > access to. Also not sure how to test on an Android device if it is being used. > > > Has anyone obtained sub-meter accuracy from any of these approaches, it must > be possible? > > > > Please discuss. > > > > Alex > > > _______________________________________________ > Talk-au mailing list > Talk-au@openstreetmap.org <mailto:Talk-au@openstreetmap.org> > https://lists.openstreetmap.org/listinfo/talk-au > <https://lists.openstreetmap.org/listinfo/talk-au> > > > _______________________________________________ > Talk-au mailing list > Talk-au@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-au
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