GRAUPNER mc-16 Programming Manual page 186

Configuring reference points
To configure a point, use the stick to move the vertical
line onto the point you wish to change. The number
and current curve value of this point are displayed on
the left side of the display, on the "Point" line. Briefly
tap the centre SET key of the right four-way button.
Use the selection keys on the right four-way button to
change the current curve value shown in the highlight-
ed field. The possible range is -125 % to +125 % and
changes do not affect neighboring reference points.
Pitch
Cur ve off
Input 0%
Output +75%
Point 1 +75%
nor mal
In this sample screen image, reference point "1" has
been set to +75 %.
If you wish, however, other points can also be set. At
-50 %, for example ...
Pitch
Cur ve off
Input –50%
Output –12%
Point 1 –12%
nor mal
... and/or a further point at +50 %:
186 Program description - Helicopter mixer
Pitch
Cur ve off
Input +50%
Output +88%
Point 3 +88%
normal
This point can now be adjusted as previously de-
scribed ...
Pitch
Cur ve off
Input
+50%
Output –50%
Point 3 –50%
normal
... or reset again with a simultaneous tap on the 
or  selection keys of the right four-way button
(CLEAR).
Trim point function
Alternatively, you can skip reference points L, 1 ... max.
4 and H in the active (i. e. highlighted) Value field using
the Select buttons  of the left-hand four-way button
in the ascending or descending direction. The selection
keys on the right four-way button can then be used
to change the reference point jumped to as described
above, entirely independently of the control position, for
example:
Pitch
Trim point
Input –50%
Output –25%
Point 2 +50%
normal
In this simple example, the pitch stick – represented by
the vertical line – is halfway between "Pitch minimum"
and the midpoint of control travel (input = -50 %).
However, "Point 1" will be relocated to control centre at
a point value of +50 %, resulting in a momentary output
value of -25 %.
One touch on the centre key of the left four-way
ESC
button terminates this trim point function.
Trim offset function
When a value field is active, i. e. in inverse video, it is
not only possible, as previously described, to jump up
or down to reference points already set with the 
selection keys of the left four-way button and to make
a change with the selection keys of the right four-way
button, but also an existing curve can be vertically
repositioned within a range of ±25 % through use of
the  keys on the left four-way button. Starting with
a point value for "Point 1" at 0 %, the control curves in
both of the following figures have been vertically shifted
within the ±25 % range by the trim offset function:
Pitch
Trim offset
Input 0%
Output +25%
Point 1 +25%
nor mal
Pitch
Trim offset
Input 0%
Output –25%
Point 1 –25%
nor mal
A tap on the centre ESC key of the left four-way button
will also terminate this function.