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Ron:
I'm fighting brain overload here.
Having converted my Cockpit CX to 2.4GHz using the same module as Alan, I'm now wondering about all the compatibility problems that might arise.
So...

Questions:

1. Will all 2.4GHz receivers work with all 2.4GHz transmitters?
(If not, why not?)

2. What is the difference between DSSS and FHSS?
Something to do with pulse lengths and framing or maybe the way the actual servo works?

3. Does a 'digital' servo just use a digital internal system to position the output shaft, rather than the older analogue system with a potentiometer as the measurement of shaft angle, or is it a different system altogether?

That's enough to be going on with :lol:

Ron

Aidan:

--- Quote from: "Ron" ---Questions:

1. Will all 2.4GHz receivers work with all 2.4GHz transmitters?
(If not, why not?)

2. What is the difference between DSSS and FHSS?
Something to do with pulse lengths and framing or maybe the way the actual servo works?

3. Does a 'digital' servo just use a digital internal system to position the output shaft, rather than the older analogue system with a potentiometer as the measurement of shaft angle, or is it a different system altogether?
--- End quote ---

Hi Ron,

1. No, The various 2.4GHz systems use different methods/protocols to encode their signals. Only transmitters and receivers of the same system will be compatible. Some 3rd parties have started making receivers for existing systems developed by other companies (I think you can get a 3rd party receiver that uses Futaba's FAAST system or one that uses Spektrum's DSM2) but in general you've got to stick with the brand in your transmitter!
It's the same situation as PCM was. Everyone has their own version.

I'm afraid I don't know enough about your other 2 questions to give you a useful answer :(

Aidan

Ron:
Thanks Aidan,

Had a feeling that would be the case, but only to be expected really.

Ron

Ron:
One more thing..... (Sorry about all these questions :oops: )

When you've got a 9v Rx and are using a 14v LiPo, where do you get the Rx power from?
Usually it gets it from the ESC, so how do you connect it all up? :?

Ron

Happy Days:
9v rx? :shock: …….have to say I’ve never heard of them.

I can only assume you’ll need a separate rx battery or get a voltage regulator and run it off the li-po

Have you got 9v servos as well??? :?:

K.

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