Sean-bumble-bee
Core User of DJI
Flight distance : 15997 ft
United Kingdom
Offline
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gnirtS Posted at 11-18 05:46
A weak GPS lock means a high circle of error and the drone wobbling round all over in that circle. An on/off GPS is worse as it "snaps" to a position, drifts out and repeats.
"A weak GPS lock means a high circle of error and the drone wobbling round all over in that circle." Taken literally and in isolation that is not necessarily correct.
Indoors, with no GPS but working VPS, ( 100's of flights ) my minis are cm perfect, to the extent that I have, occasionally, left them hovering unattended, and, when I came back, they where were I left them. I would near enough say the same of the M2Z/P but I am not going to leave those unattended, due to their cost.
Often outdoors I have to launch with out GPS (mini and M2) and, once airborne and relying on VPS alone, hover or move about slightly until sufficient GPS satellites are 'gathered'. Allowing for wind, at no point, as the GPS count ticks upwards, does the drone wander or wobble. In fact, one airdata laughable track (a mini) starts by showing the drone 300m or more from where it actually was. Once the GPS 'firmed up' the track showed the correct location but at all times the drone was stable and did not wander or wobble.
Without VPS yes then I would agree that sketchy GPS could lead to movement around a centralised location. |
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