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Compass Calibration Issues

Discussion in 'Phantom 2 Vision + Discussion' started by NoRush, Apr 16, 2015.

  1. NoRush

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    Hi Guys - came across an issue with calibration today, which some of you may have already experienced. I followed all the usual procedures for calibration, left the PH2+ blinking green for about two minutes on the ground and then accidently knocked the PH2+ on its side. That's when I got the dreaded red /green blink. Didn't dare fly today. Any clues on the reason?
     
  2. Mako79

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    Green/red could just mean not enough sats. If knock on its, side it will lose heaps of sats. What did your smartphone/device say? Any warnings pop up?

    To play it safe, plug into PC and check for errors popping up.
    If you have a bump, you will have to redo an adv calibration. Do it when phantom is cold and on levelled surface.
     
  3. NoRush

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    Thanks Mako. I had 9 sats, but you're right; tip it on it's side and maybe lose a few. But surely the PH2+ is not that sensitive. I've used "Navionics" app as the main GPS chartplotter on my launch for about 3 years now, on occassions hand held so it moves around a lot, never had a problem as experienced today. However I will take your advice and plug into the PC to check for errors.
     
  4. N017RW

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    Tilting on it's side will definitely cause loss of Sats.
    Did you return it to the upright position and wait for re-acquisition?

    Initially it sounds you were a bit too impatient here.

    Also, this is not a compass calibration issue.
     
  5. NoRush

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    Comforting to know that it's not that serious issue - I think? I did let the PH2+ settle for a while after righting but it's interesting to realise how quickly the the PH2+ lost its GPS signal. Maybe that explains why there's a sudden loss of control in unexpected blustery conditions; i.e. pitch and roll?