project41
lvl.2
United Kingdom
Offline
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I have beenlooking into the causes of flyaways and am looking at other causes, take DJI out of the picture and you will see that the same happens with other flight controllers typicaly the ardupilot (i had one go)
I have now been analising the 2.4g frequency band where i fly and found that where ever we go there is a lot of interference just down to the sheer number of wifi networks and other 2.4g signals we share the band with.
Ok so this shouldnt cause a fly away but will put you in a failsafe situation.
Other issues i have found is people doing compass calibrations with mobile phones in pockets, to check to do a safe compass calibration is easy, buy a simple magnetic compass and before doing a compass calibration just try doing it with a normal compass first and see if you have anything effecting the calibration, you will be surprised what you find.
Finally i now monitor the GPS satelite signals with an external gps reciever i bluetooth to a laptop, agian you will see that you do in fact get 6 satelites or more but the signal strength varies a lot. also xheck out sunsports and solar flares on the internet before you fly as this has a dramatic effect of GPS fix.
This is by no means a definitive answer to why this happens but since i have been following these proceedures and check i have had a lot more reliable flights and faith in the equipment we are using.
Excuse the poor spelling and gramar but it is really early in the morning |
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