[NSRCA-discussion] curious

[Bill's Email]

Honestly, you've lost me. On the PPM/PCM 14MZ if you plugged 6 servos in 
and they were all assigned to aileron the servos plugged into channels 
1, 2, 3 would act together, and the servos plugged into channels 4,5,6 
would act together. Acting together here means with little or not 
noticeable latency.

The pre 2.4 14MZ grouped channels into 4 groups of three channels. The 
2.4 14MZ makes three groups of 4 channels. It is built into the radio. 
Plugging a servo into channel one and telling the radio that is aileron 
and then plugging another servo in to channel 12 and telling the radio 
that this is also aileron will result in a potential lag for the last 
servo compared to the first servo. The radio is not going to set up some 
sort of Master-slave servo/channel mix.

Again, channels 1,2,3,4 are in one group. 
Channels 5,6,7,8 are in a second group
Channels 9,10,11,12 are in a third group.

The signal will get to the servos within each of those three groups at 
essentially the same time. WHat is plugged into those channels and what 
function you have assigned those channels is irrelevant from the 
standpoint of the radio.

So say you had 4 aileron servos, 2 per wing. You plug the left wing 
servo into channels 1 and 9. You plug the right wing's servos into 
channel 2 and 10. The two servos on either aileron will not be in synch 
as far as time that they receive a signal so there may be a potential 
latency issue. In other words, the servos may "fight" each other.

Channel one is not going to "say" to channel 9 "hey I am in charge and 
take your lead from me" as far as the timing of the receipt of the 
signal to move. They will act together in the sense that they will move 
in response to the aileron command and in the same direction.


Richard Strickland wrote:
> So if I plug say 6 ailerons in to channels 1-6 like the original 
> Futaba MZ web main page shows, we would have to compensate somehow 
> with End Point Adjustment and Servo Speed on two? That doesn't seem 
> right.  It would seem more logical that in a non-grouped setting--but 
> effectively grouped--like ailerons, twin elevator halves, or flaps, 
> you would want them in the 1-4, 5-8, etc. groups--but if you are 
> specifically 'telling' those servos "Pal, you are tied to this guy and 
> he's the boss--you do what he does."...wouldn't the 'grouping' 
> function operate that way?
> RS
>  
> ------------------------------------------------------------------------

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