Graupner GmbH & Co. KG MC-20 Manual De Usuario

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198 Detail program description - Free mixers
Notes:
By selecting 
SET with the 
f selection key of the 
left or right touch pad followed by a tap on the 
center
SET
 key of the right touch pad …
6
Mix input
0%
Offset
EL
Linear MIX  1
0%
SYM ASY
SET
STO
–75%
… the offset value can be set manually or 
adjusted in 1 % increments with the selection keys 
on the left or right touch pad.
By selecting 
SET …
6
Mix input
0%
Offset
EL
Linear MIX  1
0%
SYM ASY
STO
–75%
SET
…  – see previous fi gure – set the mixer's neutral 
point automatically back to control center with a 
simultaneous tap on both the 
cd or ef selection 
keys of the right touch pad (CLEAR). 
  Symmetrical mixer ratios
The next task is to defi ne the mixer values above and 
below the mixer neutral point – starting from its current 
position. 
If necessary, use selection keys 
ef on the left or 
right touch pad to select the SYM fi eld in order to 
establish a mixer value which is symmetric to the 
offset point just set. Following a brief tap on the 
center
SET
 key of the right touch pad, set both SYM
fi elds (now in inverse video) via the selection keys 
of the right touch pad to values between -150 % and 
+150 %.  Note that the mixer value set always refers 
to the input signal of the respective transmitter control 
(control signal)!
 Negative mixer values reverse the 
direction of the mixer.
A simultaneous tap on the 
cd or ef selection keys 
of the right touch pad (CLEAR) will erase the mixer 
ratio in the inverse video fi eld.
The "optimum" value in our example will certainly 
need fl ight-testing.
6
Mix input
Offset
EL
Linear MIX  1
SYM ASY
STO
–75%
SET
–20%
–20%
Earlier, we set the mixer neutral point at -75 % of 
control travel: as a result, the elevator ("EL") will 
exhibit a (slight) down-elevator effect even at the 
neutral point of the landing fl aps and this is naturally 
undesirable. Accordingly, you should reposition the 
mixer neutral point to -100 % of control travel, as 
described earlier.
6
Mix input
+20%
Offset
EL
Linear MIX  1
+20%
SYM ASY
SET
STO
–100%
If the offset, now -100 %, is reset to 0 % of control 
travel by using selection key 
f on the left or right 
touch pad to select the SET fi eld then tapping either 
the selection key combination 
cd or ef on the right 
touch pad (CLEAR), the following screen will appear:
6
Mix input
+20%
Offset
EL
Linear MIX  1
+20%
SYM ASY
STO
0%
SET
  Asymmetric mixer ratios
In many cases, however, we require different mixer 
values on each side of the mixer neutral point. 
Do this by fi rst resetting the offset of the mixer used 
in the example, "6 
¼ EL" again to 0 %,if necessary, 
refer to the fi gure above. Now select the ASY fi eld 
with the selection key 
f on the left or right touch 
pad then tap the center 
SET
 key of the right touch 
pad. If slider control SR1, assigned to input 6 in 
this example, is now moved in each corresponding 
direction, the mixer ratios for each of the two control 
directions, i.e. left and right of the established offset 
point, can be adjusted with the selection keys of the 
right touch pad: