Model menu
Programmable mixers
F X - 4 0
appropriate field, and select your preferred transmitter con-
trol in the menu which then appears. Any of the auxiliary
transmitter controls can be used. Your selected control is
displayed in the field, as shown in the screen shot.
Next you should define the operating mode for the trans-
mitter control you have chosen; the mode is selected using
the standard procedure: mark the field containing the sym-
bol indicating the effect of the transmitter control. Each time
you mark it, the effect mode changes. Four modes are avai-
lable in total, and their method of working is displayed in
schematic form on the screen. This is the key to the sym-
bols:
The mixer rate is 0% when the transmitter control is
in the centre position. Moving the transmitter control
to right or left increases and reduces the value respectively.
The mixer rate is 0% at the left end-point of the
transmitter control. Moving the transmitter control
to the right increases the value.
The mixer rate is 0% at the right end-point of the
transmitter control. Moving the transmitter control
to the left increases the value.
The mixer rate is 0% when the transmitter control
is in the centre position. Moving the transmitter
control to right or left always increases the value.
(the symbol for the associated transmitter control is also
displayed.)
When you have selected a transmitter control for the pur-
pose of fine-tuning, and chosen your preferred mode, you
have to define an effect range for the fine-tuning: mark the
right field in the ‘Fine-tuning’ frame, and a set of arrow but-
tons appears at the right margin of the screen. These are
used to determine the effect range in the form of a percen-
tage. The set value is displayed in the appropriate field.
You can now change the mixer setting within the pre-set
range by operating the selected transmitter control; the cur-
rently set value is displayed in brackets below the field. At
the same time a fine line is superimposed on the pro-
grammed curve to indicate the alteration to the curve cau-
sed by the fine-tuning adjustment.
Once you have established the optimum value by adjusting
the fine-tuning control during test-flights, that value can be
stored in a similar way to the ‘Trim memory’ function: mark
the ‘Mem.’ field, then answer the subsequent security query
with ‘Yes’. The fine-tuning value is then accepted, the curve
shape changes accordingly, and the transmitter control for
fine-tuning can be reset to 0%.
• Adjusting mixer values and / or the mixer curve
The first step is to define the curve type. Mark the field
which displays the name of the curve type, and select your
preferred type in the menu which then appears.
The following curve types are available:
Linear:
linear curve
EXP1:
exponential curve (curve 1)
EXP2:
exponential curve (curve 2)
VTR:
curve for 3-D aerobatics
LINE:
straight 9-point (2- … 17-point) curve
Curve:
9-point curve (2- … 17-point) curve with turn points
Mark your pre-
ferred curve
type to activate
it, and it is dis-
played in gra-
phic form. This
example shows
part of a screen
shot displaying
a linear curve.
The settings can be defined separately for both sides of the
curve (Rates A and B): mark the appropriate field and use
the arrow buttons to alter the value in it.
The curve can be shifted both vertically (OFFSET) and also
to left or right (X-OFFSET). This is achieved by marking the
corresponding field and entering an offset value using the
arrow buttons. Positive values move the curve up or to the
right; negative values down or to the left. Each change in
the curve is immediately displayed on-screen in graphic
form, so you can always see the net effect of the curve pro-
gramming you carry out.
The method of programming a mixer curve is exactly the
same as the procedure for setting up Dual Rate curves (see
page 58).
• Programming an Offset mixer
This type of mixer is typically used to pass a fixed value to a
particular function when the mixer is triggered by operating
a switch. This means that Offset mixers do not require a
Master channel. These mixers are activated using the same
method as described for mode switching (see page 59).
If you set ‘Offset mixer’ mode and mark the field which is
used to access the adjustment process, the screen will look
like this:
First determine the ‘Slave’ channel or channels, i.e. the
channel into which a fixed value is to be mixed. Up to four
functions can be operated in this way. The functions can be
selected once you have marked the corresponding field in
the function select menu which now appears. Mark the des-
ired function, and leave the sub-menu by pressing ‘End’.
Your selection is now displayed in the ‘Slave’ column.
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