Hi All,
This is the second TURNIGY TX9 transmitter that I have got into problems!
I am using Turnigy TX9 Transmitter (Mode 1) /8CH Receiver from hobbyking (standard most people get).
- I changed Mode 1 to Mode 2 by swapping pitch and throttle stick springs internally. TX works!
- I put the RF 9 (V2) module from another Turnigy TX9 with antenna (did the coax soldering).
Coming to the problem:
1) When I move the sticks of the Txm, for all channels, I can see a minimum of 900 as PWM and ~1600 as the maximum as PWM [See red bars in the mission planner Radio calibration screen]. WTF?
I want minimum PWM as 900 and max as 2100. How do I get that?? I checked the Endpoints via Menu->Settings, all say they are 100%.
2) I checked the PPM signal (set of 8 PWM's) coming directly to the Transmitter module pins (back of TX9 connecting the RF module) with an Oscilloscope. I see the minumum PWM I get is 700uS and maximum I get is 1500uS. (uS for microseconds). The APM code (I checked allows for a minimum range of 900 as PWM and MAX as 2100, above and below which it clips). See 900 (clipped) value that is seen below the red bar.
I want to get this right, the range of 900 : 2100. Some TX9 Transmitter programming is needed. Can someone please help?
Replies
Even after setting the endpoints to 120% the range of pwm is stick highly limited (max 1500).
And this happens for all channels btw.
The stick position is all up.
Thanks.
you can adjust the end points in the settings section of the transmitter up to 120