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Hello I have a problem with N3. I have a 780mm hexacopter of about 5Kg (including batteries) and set Assistant 2 as indicated by the manual (wheelbase 400-800mm) ... the engines are DJI E800 (calibrated as it explains - very badly - the manual)
PROBLEM: The UAV is completely unstable. I can not find an adequate Gain Adjustment (default 90/90/90/90) ... and a small dancer in the air and it does not stay "as the 2 million APR  ;-) we have built since 2008 !!! "; (-) Also when I give gas or when I turn the yaw axis rotation the APR has an abnormal behavior and you feel a "wa-wa-wa wa-wa-wa....." from the engines (and the engine 5 is slightly warmer) ... in short ... a kind of vibration but we exclude problems to the frame because it is rigid! For personal experience it seems that I put a Naza V2 on APR with a 2 mt. wheelbase  :-o and so it never fits a proper trim.
CLUES: - could be a problem in parameter setting "Propulsion System Bandwidth" (which I have not changed if any mistake can not handle this paramex by DJI GO ... is it?) ... so it is still halfway between min 30 E max 150
By the way, I did not understand exactly what this parameter is.
Did you have some experience in this regard?
thank you
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lvl.2
lvl.1