filter (3).param (341 Bytes)
Looking for a sanity check on my filter settings. This is one of the first flights for this craft. I have reviewed several discuss threads, the documentation, the AMC docs. Someone had applied incorrect filter settings for this flight. Attached are the ones I chose using the filter tools.
Does anything look egregious here?
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There is some corruption with that log file. It’s an old version of firmware also.
Here is the Filter Review Tool.
Filter Review Tool
Hard to say for sure with this log but it appears to be underpowered/overweight.
Oops, uploaded the wrong log. I re-uploaded and edited my original post.
I used the filter tool to create these params, the filter settings look ok to me, but I haven’t done this very much and would like a sanity check.
Sorry for the noise, I just uploaded the check flight log too. Looks like there is some noise on the low side of my filter that snuck out.
You should update the firmware to current Stable.
The craft is underpowered/overweight.
The notch filter was doing nothing w/o a throttle reference.
These look good to me but the reference is a clue that it’s underpowered.
Actually you don’t need the 2nd harmonic checked. But you have more important things to fix first. After that the tune is very bad.
We are looking into updating the firmware.
What makes you say that the throttle reference was not in use?
Can you tell me more about why you feel that the reference is a clue? Is it because the hover throttle is too high?
Per Setting Hover Throttle — Copter documentation and Setting Hover Throttle — Copter documentation I can infer that below 0.2 for hover throttle suggests that the system is overpowered, and conversely, 0.6 is a rule of thumb for the opposite problem. Is this correct?
Because the parameter was at 0.
Yes, but it’s obvious in the RC outputs at hover also. Under demand you risk loss of stabilization from maxed out outputs. Thrust Loss errors in the log is what you do not want to see but are highly likely with what you have there.
I apologize for the confusion, I meant to say that the initial log was my attempt at level flight in this wind in alt hold where possible, on which I built the filter settings. I then flew the second flight with those settings.
In the first, the filter settings were intentionally disabled since I expected them to be wrong. Someone copied in settings from another craft.
This tracks prior field reports on this system, thank you for bringing it to my attention!
