Graupner Hendheld RC 2.4 GHz No. of channels: 6 33112 User Manual

112 Program description: Swashplate mixers - model helicopter

SP – MIXER
ptch
roll
nick

+61%
+61%
+61%

In the “Swashplate” line of the “Basic settings” menu 
you have already defi ned the number of servos which 
are installed in your helicopter to provide collective pitch 
control; see page 65. With this information the transmit-
ter software automatically superimposes the functions 
for roll, pitch-axis and collective pitch as required, i. e. 
you do not need to defi ne any additional mixers yourself.
If you have a model helicopter which only has a single 
collective pitch servo, the “Swashplate mixer” menu 
point is - of course - superfl uous, since the three swash-
plate servos for collective pitch, pitch-axis and roll are 
controlled independently of each other, i. e. no mixers 
are used. In this case the swashplate mixer menu does 
not appear in the multi-function list. With all other swash-
plate linkages employing 2 … 4 collective pitch servos, 
the mixer ratios and directions are set up by default, as 
can be seen in the screen shot above. The pre-set value 
is +61% in each case, but the value can be varied within 
the range -100% to +100% using the arrow buttons of 
the right-hand four-way button, after pressing the central 

 button of the same four-way button.

Simultaneously pressing the two arrow buttons 

cd or 

ef of the right-hand four-way button (CLEAR) resets 
the mixer input in the highlighted fi eld to the default 
value of +61%.
If the swashplate control system (collective pitch, roll 
and pitch-axis) does not follow the transmitter sticks in 

Collective pitch, roll and pitch-axis mixers

the proper manner, then the fi rst step is to change the 
mixer directions (“+” or “-”), before you attempt to correct 
the directions of servo rotation.