I'm trying to setup my GA250 to fly my Trex 450...

I have no clue to the "1520us/333hz, 760us/560hz and 960us333hz" settings.

lol, what are these settings and how do I find out what I would set the GA250 to work with my JR DS281 or my DS285 servo?

why not read the thread already started on this subject?

https://www.rcgroups.com/forums/show....php?t=1362819

I was just hoping this could be a specific thread to a certain part of the subject. I didn't really wanna read through 80+ pages trying to see if somebody has asked the same question, if it is even there..

Originally Posted by bamm

I'm trying to setup my GA250 to fly my Trex 450...

I have no clue to the "1520us/333hz, 760us/560hz and 960us333hz" settings.

lol, what are these settings and how do I find out what I would set the GA250 to work with my JR DS281 or my DS285 servo?

Those numbers refer to the center (0*) position pulse width and the frequency at which the pulse is sent. Servos are controlled by sending a pulse of between 1 and 2ms with 1520ms being 0* for a typical servo. Analogue servos accept that pulse 50 times per second but newer digital servos, used for heli tails accept input more frequently.

To work out the correct settings you will need to check the specifications of the servos in question. JR should have them published somewhere.

Thanks for the reply


Although I can't seem to find the pulse width for a DS285 when I search on Google and RCG

Originally Posted by bamm

Thanks for the reply


Although I can't seem to find the pulse width for a DS285 when I search on Google and RCG

If its not specified I'd wager it is 1520, if it was otherwise it would be made pretty clear by the manufacturer.