ianwood said:I think this sums it up nicely. DJI, please pay attention to this:
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Dear DJI
Please Fix
THANKS!

ianwood said:I think this sums it up nicely. DJI, please pay attention to this:
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ianwood said:The right way to correct for declination is painfully simple: You have a lookup table of declination data which is roughly 3Kb to 4Kb in size and based on GPS lat/lon. Once the GPS position of the vehicle is known, the corresponding declination is pulled from the lookup table and applied to the magnetic heading. It's about 3 lines of code and a 2 axis table. Pretty simple. My suspicion is that the P2 Naza is actually doing this but it is applying it backwards (i.e. subtracting as opposed to adding) which is why many have to rotate their compass by roughly twice their declination.
Seriously?!ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
If it's that simple, and I don't doubt that it is, then one has to wonder why it's taking DJI so long to implement it.ianwood said:The right way to correct for declination is painfully simple: You have a lookup table of declination data which is roughly 3Kb to 4Kb in size and based on GPS lat/lon. Once the GPS position of the vehicle is known, the corresponding declination is pulled from the lookup table and applied to the magnetic heading. It's about 3 lines of code and a 2 axis table. Pretty simple. My suspicion is that the P2 Naza is actually doing this but it is applying it backwards (i.e. subtracting as opposed to adding) which is why many have to rotate their compass by roughly twice their declination.
ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
onfourblades said:ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
what could be more pressing then faulty flight controlers?
:? not looking good.
Question - Are there issues with their A2 system as well?
onfourblades said:ianwood said:I've heard from them. They've had to shift focus to another pressing issue (H3-3D?, battery?) but would be back on this next week. Still no ETA.
what could be more pressing then faulty flight controlers?
:? not looking good.
Question - Are there issues with their A2 system as well?
John Shaw said:I do appreciate DJI keeping us informed even if it isn't what we want to hear.
I had this ominous thought last night...
We know this declination problem brings us TBE, drift, JHook, and Course Lock offset angle.
Does it effect Home Lock? I bet it does. If you powered up, took off, flew out a 100 feet or more, turned on Home Lock and pulled back on the right stick would it come straight toward Home as it should or would it bow out in a curve due to the declination problem. I've used HL but only later in the flight when the declination error has been worked out.
And...
I would also suspect that the declination problem will effect the long anticipated waypoint capability. I would suspect going from one waypoint to another is analogous to course/home lock. Terrifying thought.
The good news is it is likely just a single fix will fix all of them (declination table etc as ian and other have mentioned).
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