Graupner Hendheld RC 2.4 GHz No. of channels: 8 33116 Data Sheet
Product codes
33116
177
Programming example - fixed-wing model
Programming example: servos running in parallel
In some cases a second servo is required to run in
parallel with an existing servo; for example, if a second
elevator or rudder is to be actuated by a separate servo,
or where a second servo is needed to cope with very
high control forces, or where two servos are required for
a large control surface due to the high forces involved.
This task could be solved simply by connecting both ser-
vos together in the model using a conventional Y-lead.
However, this has the drawback that the linked servos
cannot be adjusted individually from the transmitter, i. e.
you forfeit the basic advantage of the computer radio
control system: separate adjustment of individual servos
from the transmitter.
Another option would be to call up the Telemetry menu
and use its “Channel mapping” option instead of a
simple Y-lead; see page 140. However, the simplest
method is to use the transmitter’s software facilities. For
example, it is easy to set up …
parallel with an existing servo; for example, if a second
elevator or rudder is to be actuated by a separate servo,
or where a second servo is needed to cope with very
high control forces, or where two servos are required for
a large control surface due to the high forces involved.
This task could be solved simply by connecting both ser-
vos together in the model using a conventional Y-lead.
However, this has the drawback that the linked servos
cannot be adjusted individually from the transmitter, i. e.
you forfeit the basic advantage of the computer radio
control system: separate adjustment of individual servos
from the transmitter.
Another option would be to call up the Telemetry menu
and use its “Channel mapping” option instead of a
simple Y-lead; see page 140. However, the simplest
method is to use the transmitter’s software facilities. For
example, it is easy to set up …
Two elevator servos
… to operate in parallel. First move to the …
… to operate in parallel. First move to the …
“Base settings” menu
mod name
stick mode
motor at C1
1
idle re.
tail type
cut off
+150%
–100%
–––
2elev sv
… and set “2elev sv” in the “tail type” line.
The two elevator servos are then connected to receiver
output sockets 3 and 8.
The two elevator servos are then connected to receiver
output sockets 3 and 8.
Two rudder servos
In this example we will connect two rudders “in parallel”
using the “
In this example we will connect two rudders “in parallel”
using the “
Free mixers” menu. The second rudder could
be connected to receiver output 8, which is not already
in use.
The first step is to move to the …
in use.
The first step is to move to the …
“Free mixers” menu
typ fro
to
M1
M2
M3
??
??
rd
??
8
??
tr
… and set up a mixer “Tr RUD 8”.
In the “Type” column select the “Tr” setting, so that the
rudder trim affects both rudder servos.
Finally switch to the graphics page and set a
In the “Type” column select the “Tr” setting, so that the
rudder trim affects both rudder servos.
Finally switch to the graphics page and set a
SYMmetri-
cal mixer input of +100%:
MIX1
rd
8
trv
0%
Offs
ASY
SYM
+100% +100%
tr
Once again, for safety reasons it is really essential that
you set input 8 to “free” in the “
you set input 8 to “free” in the “
Transmitter control
settings” menu.
As an added refinement, you may want both rudders
to deflect outwards only, as part of a braking system
controlled by the Ch 1 stick. This can be accomplished
by setting up two additional mixers “
As an added refinement, you may want both rudders
to deflect outwards only, as part of a braking system
controlled by the Ch 1 stick. This can be accomplished
by setting up two additional mixers “
c1 4” and “c1
second rudder control channel”, with suitable servo
travel settings. An offset of +100% is then selected for
both mixers, as the Ch 1 stick is (usually) at its top end-
point when the airbrakes are retracted, and the winglet
rudders are only required to deflect outwards proportion-
ally when the brakes are extended.
travel settings. An offset of +100% is then selected for
both mixers, as the Ch 1 stick is (usually) at its top end-
point when the airbrakes are retracted, and the winglet
rudders are only required to deflect outwards proportion-
ally when the brakes are extended.