How to configure MAX M10S to use SBAS?

GPS/GNSS
1

Hi,
I have configured my MAX M10S GNSS module (SparkFun GNSS Receiver Breakout - MAX-M10S (Qwiic)) to use the GPS, Galileo and BeiDou satellite constellations. Now I would also like to use the SBAS (EGNOS) signal to improve the position accuracy. I am using the u-center-2 application for testing. The “Satellite Signal View” shows that three SBAS signals (S123, S127 & S136) are received, but they are not used for positioning (see ublox-max-m10-dashboard). Their status is displayed as “Not used”. I have activated SBAS in the CFG-SBAS configuration. “Fix mode” shows “3D fix”, but no SBAS.

Which configurations do I have to make so that the SBAS signals are taken into account?

ublox-max-m10-dashboard
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2

Hi Erich (@erichbieri ),

It looks like SBAS is working fine. The reported horizontal accuracy is (I think) 18cm. And the fix type reported in the GNGGA message is “2” (DGNSS). I think “3D fix” is just how u-center2 reports the fix type. If you switch to classic u-center, it should show “3D/DGNSS” in the Fix Mode.

I hope this helps,
Paul

3

Also, try refreshing NAV-SIG. Your data is 126771 second old! :wink: You need to poll it manually to update it. Or set it to periodic, so it updates automatically every second.

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1 Like
4

https://portal.u-blox.com/s/question/0D5Oj00000hck2tKAA/how-to-configure-max-m10s-to-use-sbas

1 Like
5

Thank you PaulZC, you are right the classic u-center shows the “3D/DGNSS” correctly. u-center-2 is a bit misleading here.