CSM cyclock

[Ade_Law]

anybody know what the resolution of spectrum is (eg 1024) this is the other main advantage of the cyclock in you get full control resolution from the tx combined with running the servos in DS mode its going to be pretty damn accurate.

Ade

[ChrisB]

Very interesting, will have to digest it fully when I have some time.

I'll just have to limit my investigations to 'how it feels' since I don't have that sort of equipment lying around at home

Trev

It will be interesting to see your conclusions after testing one,for me however i can only dream of being at that sort of flying ability level where i could actually tell if i am gaining from it

[ChrisB]

anybody know what the resolution of spectrum is (eg 1024) this is the other main advantage of the cyclock in you get full control resolution from the tx combined with running the servos in DS mode its going to be pretty damn accurate.

Ade

Quote from their website

And because it operates at 1024 bit resolution, it provides the kind of locked-in response that will have you feeling more connected to your model than ever before

[3DJIM]

and shut Jim up about needing the full square area for planks...

You will never shut me up Trevski!, people have been trying for years!!

Anyway back to testing MP, its close now!!.

Jim

[Ade_Law]

thats the input resolution i believe the output res to the servos is much higher.

can we quit the petty bickering and back stabbing please it doesnt belong here.

Ade

[ChrisB]

thats the input resolution i believe the output res to the servos is much higher.Ade

Hmmm,i dunno about that one

[Ade_Law]

in DS mode it definitly is.

Ade

[ChrisB]

Cant see any reference to any more specs in the manual or on their website

I dunno,all this modern technology,it confuses this old git for sure

[Ade_Law]

With CycLock you transmit the aileron, elevator and collective signals at maximum ATV (say 140%) and exploit the full resolution potential of the RC system. CycLock then mixes the signals and transmits the resulting servo commands at 4800 point resolution losing none of the control resolution of your radio system.

there ya go.

Ade

[ChrisB]

Sorry mate,i was looking at the Spektrum website for their specs,got the wires crossed

I see how the Cycloc works and its potential benefits,i will take a backseat on this one for now but i am interested to see if it does improve it from yours or Trevs point of view once you have had a play

[Steve]

If you transmit at 2048 bits say, then what's the point in the unit then responding at 4800 bits?

The speed is surely governed by the slowest link in the chain i.e. 2048.

[Ade_Law]

because on CCPM your using half the servos travel for each control.

Ade

[Steve]

When using the elevator control, you're using half travel on each of the 2 aileron servos, and full travel on the front (or back) servo.

When using the aileron control, you're using half the travel on each of the 2 aileron servos, and zero travel on the front (or back) servo.

When using the pitch control, you're using an equal portion of all three servos.

All depending on the mechanical set-up of the heli linkages of course.

[Ade_Law]

ok... i need to explain this better.

on a normal swash non CCPM you setup for 100% atv thats a total travel of "200%". Now this isnt full travel of the servo. its actually 140% each way. "280%"

so your 1024 "bits" are 1024 steps this equates to 3.66 steps per % of servo travel.

now lets look at a CCPM setup.

at full collective plus full rearward elevator. Your swash AFRs are set to 60% for collective and cyclic. so the central servo is going to be at "120%" but at full collective only its going to be only 60% that means that for the collective control your only going to be using 438 steps for each control.

now... with the cyclock you can max out your ATVs so now for the controls the cyclock is getting the full 1024 steps.

however the servo is still working at half its travel. the good thing is that the servos have a much higher resolution than the rest of the control system. so by transmitting from the cyclock to the servo at 4800. you still get 2400 steps for each control double the resolution of what is coming from the transmitter and over 5 times the res of a normal CCPM setup.

considering there is a noticeable difference between the old 512pcm, 1024pcm and the latest G3 2048 and i believe spectrum is at similar levels it sounds like a worthwhile gadget for this alone.

Ade

[Steve]

Nicely explained.