Transmitter Presettings - GRAUPNER GR-18 Series Manual

Setting necessary when servos
are installed for additional
functions

Transmitter presettings

Step 1
Setting of the flight-mode -
attitude or rate mode
3
E5 +100% +100%
E6 +100% +100% +88%
– TRV +
Do not forget to set the failsafe up!
10 - 24
Cycle time (PERIOD)
If your system is used exclusively with digital servos, you can set
a cycle time (frame rate) of 10 ms. If your system includes some
or uses exclusively analogue servos, you should always select
20 ms, as many analogue servos cannot process the higher
frame rate and may respond by "jittering" or "growling". Not
important for connected speed controllers.
HoTT sum signal (SUMD)
If you activate the digital sum signal at channel 6, a sum signal
containing 8 channels is present at this socket, instead of a
servo signal. The HoTT receiver configured as SUMD constantly
generates a digital sum signal from 8 control signals from the
transmitter and makes this signal available at the appropriate
servo socket, which is receiver-specific. At the time this manual
was revised, this type of signal was being used by several of the
latest electronic applications of flybarless systems, power sup-
plies, etc.
(Sensor at CH9):Telemetry sensor
Telemetry sensor (sensor at CH9): This socket allows you to use
either for telemetry or for an extra channel (9). (Attention! Both
together is not possible!) Switching is done in this menu item. If
you select "Yes", the socket is connected to the connection of
a sensor. If you select "No" a jack is connected to the control
channel 9.
Ant. 1 - Ant. 2
This indicator shows strength of the signal received (as a per-
centage) from the antennas of the receiver. The display is used
to find the correct position of the antennas during the installa-
tion.
In the transmitter it must be selected a free model memory, the
model type must be "surface model" and the channel 1 direction
must be set so that in "motor off" position the power indicator
must show -100%.
The flight mode must be set on channel 5. For this program a
2-way switch (e.g. switch 3) in the transmitter control menu on
Channel 5 as follows:
Attitude mode: Channel 5 = -100% to +50%. The stick move-
ment determinates the Copter reaction on Roll and Nick. It
allows a maximal angle of about 50° at 100% of stick move-
ment. Mode suggested for beginners. The stick movements
acts directly proportionally to Roll and Nick.
Rate mode: Channel 5 = more than +50%. The stick movement
determinates the rate without angle limit. Aerobatic mode that
allows rolls and loopings.
We suggest to set the fail-safe on channel 5 and channel 1 at
-100% , so that in fail safe it is active the attitude mode.
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