Best PPM Setting for FrSky

Choosing an RF Module? What modules work? What is compatible with the 9x?
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bwww
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Best PPM Setting for FrSky

Post by bwww » Fri Oct 19, 2012 2:17 am

Hi,

I have installed the FrSky DHT 8ch DIY Telemetry TX module in my Turnigy 9x (Running Open9x with FrSky Telemetery). It is paired with a FrSky D8R-II PLUS 8CH Receiver (with Telemetery). What is the best Proto and PPM Frame settings for this kind of setup?

Thanks, I am a newbie at RC.


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Kilrah
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Re: Best PPM Setting for FrSky

Post by Kilrah » Fri Oct 19, 2012 6:38 am

The default is fine.

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bwww
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Re: Best PPM Setting for FrSky

Post by bwww » Fri Oct 19, 2012 11:58 am

What is the default (I have been messing around with mine)?

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Kilrah
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Re: Best PPM Setting for FrSky

Post by Kilrah » Fri Oct 19, 2012 12:05 pm

Just create a new model and you'll see ;)
PPM 8CH 22.5ms 300u NEG if I remember well

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jhsa
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Re: Best PPM Setting for FrSky

Post by jhsa » Fri Oct 19, 2012 12:59 pm

Mine defaults to POS.
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PNaz
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Re: Best PPM Setting for FrSky

Post by PNaz » Fri Oct 19, 2012 3:05 pm

FrSky accepts POS or NEG so the setting doesn't matter

Paul

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olafnew
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Re: Best PPM Setting for FrSky

Post by olafnew » Tue Oct 23, 2012 8:10 am

I'm pretty sure - i've read somewhere, either in the manual, or withing the rcg forum thread related to frsky, that FrSky ppm frame length is recommended 18ms for the standard speed, and 9ms for high speed. I myself use 18ms, and no problems.

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Kilrah
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Re: Best PPM Setting for FrSky

Post by Kilrah » Tue Oct 23, 2012 8:17 am

No, that's what the frsky receiver puts out on the servo pins, NOT what you should give to the TX module.
Sending an 8-channel PPM signal in 18ms to the TX module will cause loss of response in certain conditions.


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