openrcforums

Hi,

I wonder at which framerate the X8R Receiver drives the Servos. I could not find a "Normal" and "Fast" mode like with the D8R's
Is it somehow possible to change the Framerate of the X8R?

Fixed at 18ms AFAIK.
The fast option on D receivers was useless anyway, the receiver would not get updates that fast so would just send the same thing twice.

Sent via mobile

How sure are you about this 18ms for the X8R

I recently have had two failures when using the X8R receivers.
Two hitec HS-82 MG analogue servo's destroyed in 1 month time.

When I bind the receiver and Taranis, the Taranis says 9ms in the menu?

Kind regards

The Tx sends 8 channels every 9mS, but the X8R does only output servo pulses every 18 mS.

Mike

Recently I had several servo's burning out in my plane ( Mulitplex extra 330SC ) using the X8R receiver.
I am using the Taranis X9D as my radio. In the bind menu, I have selected CH1-CH18 [18ms].
So I was very surprised, since 18ms should be ok for analogue servo's
The servo's were the analogue Hitec HS-82 MG, I burned 4! on the ailerons.
These are the standard servo's installed by multiplex in the Extra 330SC.

I wanted to stop guessing about the cause, so I went to my friend who owns an oscilloscope.
We tested the X8R, and it outputs the PWM signal at 18ms to the servo.
Then we rebinded the receiver in CH1-CH8[9ms] mode, and tested it again.
Again we measured a framefrate of 18ms going out to the servo


Hope this helps!!
Regards

The figure displayed in the menu is about the RF transmission, not the signal on the servo pins. The latter is configured in the receiver itself on the models that support it, see receiver's manual.