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First encounter with the dreaded ATTI mode with my Spark
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<blockquote data-quote="ron77584" data-source="post: 66014" data-attributes="member: 10189"><p>mag interference or deviation is almost always the reason it goes Atti mode. I think the M.I. detected is probably false or only last a few seconds but when the drone flight software thinks it is experiencing to much interference it ignores the compass and GPS.</p><p>I believe it even reboots GPS and all this takes time to come back and get locked on to GPS while the drone drifts with the wind.</p><p>Mine certainly didnt exp M.I. at 380 ft alt but it thought it did and was 1/4 mile away in 30 seconds before comp and GPS were functioning again.</p><p>There is no reason why it shouldnt keep giving GPS position so you could at least see it on the map. Lots of people are loosing the drone because of the way it handles fdi (fault detection and isolation) of the compass.</p><p>Why not have atti mode with GPS and let it ignore only the compass in these situations?</p><p>Somebody must know what parameter controls how much magnetic interference is allowed. Increase that allowance or make it wait 5 seconds before it goes atti or prevent it from resetting GPS.</p></blockquote><p></p>
[QUOTE="ron77584, post: 66014, member: 10189"] mag interference or deviation is almost always the reason it goes Atti mode. I think the M.I. detected is probably false or only last a few seconds but when the drone flight software thinks it is experiencing to much interference it ignores the compass and GPS. I believe it even reboots GPS and all this takes time to come back and get locked on to GPS while the drone drifts with the wind. Mine certainly didnt exp M.I. at 380 ft alt but it thought it did and was 1/4 mile away in 30 seconds before comp and GPS were functioning again. There is no reason why it shouldnt keep giving GPS position so you could at least see it on the map. Lots of people are loosing the drone because of the way it handles fdi (fault detection and isolation) of the compass. Why not have atti mode with GPS and let it ignore only the compass in these situations? Somebody must know what parameter controls how much magnetic interference is allowed. Increase that allowance or make it wait 5 seconds before it goes atti or prevent it from resetting GPS. [/QUOTE]
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First encounter with the dreaded ATTI mode with my Spark