Quote Originally Posted by geckogrotto View Post
Oh I think we may be comparing two seprate things skimask.
I'm looking at just one servo channel not all of them at once like I think you are.
Well, ya, I get what you've got cooking (I think)...but what I'm saying is that I'm looking at 4 channels at once on 4 seperate channel's on the 'scope. If the first channel's pulse width gets lengthened, the rest of the channels get slid back a bit, and vice-versa if the pulse width gets shortened.
BUT...if I look at the total string (i.e. the whole string of channels as they are all received with all the data on one line), at the end of the chain (in my case 8 channels), there's always a sync pulse of at least 4ms that 'resets' the receiver back to channel 1. So, if each channel's pulse width is 2ms with 8 channels, that's 16ms + a 4ms sync pulse. And there is also an 'inter-servo' (for lack of a better phrase) time of a few us or so. So, if you're looking, or maybe just concentrating on one channel, it may appear that the frequency changes a little bit because the pulse width is changing. It can change a little bit, but overall, it will keep happening at a rate of about 50hz.

Wait a minute... I forgot what you were trying to do in the first place...what's the end result supposed to be?