help me expand channel in my Futaba rc transmitter

I have a Futaba 6 channel transmitter which gives out PPM output to the radio ( to the 2.4Ghz module)

I want to read that PPM signal with arduino and then add 2 more channnel and output a 8 channel PPM ...

A member of a forum have posted a similar thing done with PIC


2 extra channels for your 4~6 channel transmitter!


Optional switched channels (replacements for potentiometers)

HERE IS THE CODE AND .ASM FILE FOR THE ABOVE CIRCUIT
http://www.megaupload.com/?d=O00AWQLT

That should work in a similar way with an Arduino.

Korman

One thought:
8 channels in a 20ms frame time may confuse the counter reset circuit in the receiver, because the two additional pulses will shorten the inter-frame gap.
Or maybe modern circuits are more robust than the simple RC circuits used in older receiver/decoders.

no that wont be a problem actually...
because actually my transmitter was in 35mhz...

Now i have hacked it with a 2.4Ghz module
and my receiver is an 8 channel receiver too...

and by the module i can transmitter 8channels too...

So actually now i am only using 6 channels of it...