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Bad GPS Pos and High Offsets

Posted by Kyle Jeffries on February 9, 2014 at 6:05pm

Hello everyone. First, thank you to everyone who contributes here. The wealth of information provided here is incredible.

I've been flying my 3DR APM 2.6 and GPS/Compass for 4-5 months now. When trying to calibrate the compass I am now getting a Bad GPS Pos error and failed pre-arm checks, even though the gps and compass fly without incident.

Additionally, my offsets are very high, currently -38, -422, 225. I have tried multiple GPS units, both have the very high offsets and I cannot figure out why. Only one of the two modules give the GPS Pos error.

Can anyone help me get to the bottom of this?

Thanks,

Kyle

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Replies

  • David Romero February 26, 2014 at 1:14pm

    Hello Im having the same problem.. its weird i check the wiring to see if i cut or broke a cable but there was nothing. I seem to happen alot when im home.. but when im out in the flied it works fine.. i know this start when i updated to 3.1 but i would think if it was the firmware I would see more posts about thins..

    • hal > David Romero February 26, 2014 at 1:37pm

      I have had the same issue on and off the last few days.  I was thinking about posting about it too.  I lost gps during a flight 2 days ago, and sometimes i get a good gps position in 30 seconds or less, and somethimes it takes 10+ minutes all sitting in the same spot.  I do know they launced a new GPS sattelite and maybe they are moving them around causing some temporary issues?  But its something new for me too and unexplained.  I was running 3.1.1 and now 3.1.2 and the issue has been present on both.

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