The mixing unit would deal with controlling the servos.
The Y lead is still needed to control the motor and collective from
one channel. One of the Y lead outputs goes to the speed control,
and the other to the collective input on the mixing unit.
The other problem that might arise is revolution (collective to rudder)
The mechanical mixer does this, but the CCPM mixing unit most
likely does not.
Without revo mixing, you will be on the rudder every time you make
a collective change.
Heli radios have the revo mixing built in. A
heading hold gyro would remove the need for revo mixing. You can
probably buy one of the six channel heli radio Tx units (JR 652, Futaba
for the cost of an HH gyro.
> There will be no need for the Y lead. The Quick mixer will take 3 channels
> in ( aileron, elevator and collective) and convert it to 3 or 4 channel CCPM
> selected on a switch.
> Peter Wales in Sunny Orlando
> > I have an ECO 8 with mechanical mixing and I control it with a Futaba 4ch
> > radio. I really want to get rid of the mechanical mixer so instead of
> > getting a heli radio I thought an external ccpm mixer box would be good.
> > Like this one http://www.quickuk.co.uk/mhup.htm second from bottom. Would
> > work??? Remember that the radio is only 4 channel and I have 5 functions
> > the helicopter. At the moment with the mechanical mixer there is a y
> > between the 2 aileron servos. Could I just do the same thing with the ccpm
> > setup and run it through the external ccpm mixer box?? Or what else could
> > do??
> > Thanks so much,
> > Alex Veneziano