Unfortunately, at these wavelengths, the "shield" as used inside Phantom 2+ have zero efficiency, and actually acts as improvised ground plane.
How can you explain the situation where the Phantom struggles to get 5 satellites, nor even 6 for long 15 minutes and the phone placed just by side gets...
It appears you are not alone who have unstable GPS.
It appears to be engineering fault of the PV2+, see this for explanation
https://www.youtube.com/watch?v=tV0rOBewNf0
It clearly shows, Phantom 2+ camera electronics causes GPS interference and loss of GPS signal.
I would say PV2+ GPS receiver fix was lost. See more details in here https://www.youtube.com/watch?v=tV0rOBewNf0
It actually appears there are more incidents related to the poor GPS reception due to PV2+ engineering faults than it was though.
motion upon the power on is auto-tuning procedure
see this for details https://www.youtube.com/watch?v=iySFbchfPYY
but after this, the gimbal shall be perfectly stable, no vibrations, no noises.
Re: Also noticed sporadic jello on your PV2+? DJI gimbal iss
Another PV2+ jello example posted here: https://www.youtube.com/watch?v=q_8AjRPsXDo
Jello is delicate, intermittent and only occurs at certain till and bird angles.
Anyone with the same issue?
Re: Also noticed sporadic jello on your PV2+? DJI gimbal iss
Check this out:
http://youtu.be/iySFbchfPYY
Exactly as mine, but in different tilt angle, gimbal on my P2V+ makes noises and jello pointing straight down.
Well, I'm definitely not on the DJI payroll, but I can distinguish well done engineering from junk.
Yet there are many people perfectly happy with DJI products, and some who don't.
Even if there was some RF interference to 5.8GHz control link or 2.4GHz Wi-fi it will only cause failsafe or lost of video. All data packets have control checksum so any corrupted data are simply refused, what is being equal to lost connection with all consequences. Loss of GPS in GPS mode or...
I'm 100% sure DJI and their responsible engineering teams with their managers are very well aware of all issues. This is actually the gamble about the production cost. While it is easy to make it (the product, in this case Phantom Vision 2 plus) perfect at given production cost, to make it...
It is more complicated than it appears. Indeed, you need only 4 satellites for 3D GPS fix.
In fact, having more correlators locked in to more satellites, using standard least squares method and more complex statistical methods plus additional data from WAAS/SBAS satellites you can further...
Unfortunately there is no easy DIY fix. Housing is made from anodized aluminum and there was zero care from DJI's engineering to assure proper RF interconnects to avoid radiation. Another chapter is the board level RF EMC behavior of the camera subsystem, which could be not easily fix due to...
As soon as there is 3D GPS fix or even 2D, there shall be no issues in GPS mode or RTH. Basically, you'll need 4 sats locked in for 3D fix and 3 for 2D fix. But here DJI wants to go for sure, so this is why they set 6 as minimum.
Actually the problem is on the other side - 6 shall be no problem...
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