Dear all,

I am new to the FOSS-GPS list, so I hope I am using it the right way. Also, experienced in IT and GIS, but a novice to technical GPS. As an archaeologist I am experimenting with cheap but accurate positioning and recently heard about RTKGPS for Android; getting accurate (sub 10cm) positioning with an external GPS and your smartphone/tablet.
I found one example of an experiment with the app on your list as well.

Now I bought an external GPS receiver BU-353-S4USB GPS with SiRF Star IV GPS chipset, because I read that it can be reset to RAW L1 band data for use with the app. Strangely enough the manual for doing this is in an old e-bay post :
http://www.ebay.ie/itm/GPS-receiver-for-RTKLIB-Android-app-USB-SiRF-Star-IV-/300988568359.

So, I followed the steps and can get at least some GPS apps working with the antenna on my Windows machine.

On the Android device however, a green light, but no data. I am not sure even how to configure the app (info not provided on e-bay or anywhere else so it seems). Also, tried the Windows version of RTKNavi, but it doesn't roll with SIRF it seems? Any advice or similar experiences? Should I have bought another antenna after all?



--
Met vriendelijke groet / Kind Regards,

Jorn Seubers
PhD Mediterranean Archaeology
Groningen Institute of Archaeology
http://rug.academia.edu/JornSeubers

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