Gps needed???

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Hello all, I recently traveled about 300 miles to fly phantom and when I tried to calibrate it the first step went fine but then when I turned it so the light was up and performed the second step in the calibration the red light flashes meaning that calibration failed. I was in large parking lot and had no metal objects on me (phone, keys, pants zipper, car). So I plugged it into my computer and all the settings I set were off (IOC FS) so when I went to check the box to turn on IOC it said "gps needed" and I am not sure how to get gps? Do I need to buy a part for it so it can get gps?
Thanks
 
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Metal stuff all around shouldn't have anything to do with getting GPS reception. It'll screw things up for your COMPASS calibration, but not GPS.
 
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Take it back out there, set it down and power it up and let it sit for a couple of minutes. Don't worry about the lights. Then power down and back up and do the compass dance. If I remember right, that's what I did with mine.
 
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Take it back out there, set it down and power it up and let it sit for a couple of minutes. Don't worry about the lights. Then power down and back up and do the compass dance. If I remember right, that's what I did with mine.
Ok thanks for the help
 
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It was just a gravel ground level lot with no lights or anything of that nature
I'm NOT the one to give advice here yet....but....can you really get it level enough to do a good calibration....on gravel ???
 
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I'm NOT the one to give advice here yet....but....can you really get it level enough to do a good calibration....on gravel ???
IMU calibration needs to be done on a level surface, but the OP is talking about the compass calibration. Totally different and separate things.
 

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