What's new
Aloft Forums

Welcome to Aloft Forums. Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

Archer plus SR8 gyro issues

gorc

New User
Hi all,
I have some gyro gain adjust issues with the Archer plus SR8 receiver.
The issue is related only to the gyro gain adjustments. Everything else works.

All the other functions of the archer Rx work except the gain of gyro are difficult to adjust.

As an example to keep the explanation easier, I will limit the description to the ailerons gyro.

On my extra-540 foamy, I previously had the S8R receiver with firmware UNI-RX V83.
With the AIL gain of 20% and a global gain of about 20% (CH9), the plane was really solid and stable even in hi winds.

Then I changed the S8R for the Archer plus SR8 and used the exact same gains, AIL gain is 20% and global gain 20% (CH13).
The EXTRA-540 plane and all the hardware are 100% the same, no changes. But now the plane was very unstable because the ailerons were oscillating like crazy.
I had to reduce the AIL gain to 10% and global gain (CH13 in the archer) to less than 10% to stop oscillations.
But now with this very low gain, the AIL stabilization does practically nothing since it is so low 10% x 10% is very small (= 1%).

So my opinion is that the gyro gains (either firmware or stab scripts have something very different) since the plane is exactly the same. I only changed the receiver, nothing else.

If there are users of this receiver, did you have this type of issue?
Any reason why gyro is so sensitive at very low gains?

Thanks,
Gorc
 
Back
Top