Help needed on Walkera 38#

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04 Sep 2013 02:43 #13540 by Bradster27
Help needed on Walkera 38# was created by Bradster27
I have a Walkera 38#, (tandem coax with Chinook body, 450 size).

Problem is that I can't get it to work. I can get it to bind under 2401 protocol only, the elevator and aileron work but I can't get the throttle to work. It uses the RX-2409 receiver with an external esc for the 4 brushed motors.I have tried all sorts of settings, all to no avail. Does anyone have any suggestions, any help appreciated.

Also this is my first post so please tell me if I have posted in wrong area

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04 Sep 2013 04:15 #13543 by FDR
Replied by FDR on topic Help needed on Walkera 38#
Hi!

Probably the ESV requires different throttle range.
You can try to calibrate it if that is possible, or try to modify the range with the scale values of the throttle channel. You should probably increase them to match the range of the 2401...

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07 Sep 2013 06:02 #13625 by Bradster27
Replied by Bradster27 on topic Help needed on Walkera 38#
Hi FDR,

Sorry to ask but what is ESV?

I have tried calibrating throttle by moving throttle stick to full range after heli binds. I have also tried setting throttle range to 0-100 instead of -100 to +100 and both these together.

I forgot to add that I am using a Devo 8s.
Thanks for the help, I will keep trying

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07 Sep 2013 08:18 #13628 by FDR
Replied by FDR on topic Help needed on Walkera 38#
Sorry, that was a typo, I meant ESC of course...

The 0..100 range won't do.
I meant increase the range to about -125...+125, because the 2401 used the full range, but in deviation simulates the range of the 2801, which is narrower, but can be increased...

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07 Sep 2013 08:30 #13629 by Bradster27
Replied by Bradster27 on topic Help needed on Walkera 38#
Hi FDR,

You sir are a genius.

I just set the throttle scale to -125 +125 as you suggested.

Worked perfectly. I would never have thought of that, so simple.

Thanks for the help, much appreciated

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07 Sep 2013 10:03 #13630 by FDR
Replied by FDR on topic Help needed on Walkera 38#
You are welcome, I'm glad I could help...

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