23
Using the transmitter for the fi rst time
Using the transmitter for the fi rst time
Preliminary notes, selecting the language
Preliminary notes
When your
mx-24s transmitter is delivered it is set
by default to SPCM20 mode, which suits receivers
of the “smc” type.
In addition to SPCM-20 mode the following alternati-
ve modes are also available:
• PCM20 mode for all GRAUPNER/JR “mc” and “DS
mc” type receivers.
• PPM18 mode for all GRAUPNER/JR “FM-PPM”
type receivers.
• PPM24 mode for the GRAUPNER/JR DS 24 FM S
receiver.
• PPM10 mode for GRAUPNER/JR FM receivers
with up to five servo outputs, e. g. SR6SYN or
XP10FM.
• APCM20 mode for all GRAUPNER/JR “amc” type
receivers.
The ability to switch transmission modes means that
the mx-24s transmitter can operate all GRAUPNER
receiving systems supplied to date, i. e. all receivers
supplied with PPM-FM and PCM transmitters (with
the exception of the FM6014 / PCM18).
If you do not intend using a receiver of the “smc” type
with the transmitter, the fi rst step is therefore to set
the type of modulation to suit your receiver. If you se-
lect an incompatible mode, the receiver will not re-
spond to the transmitter.
The transmission mode can be set in the “Modulati-
on” line of the »Base setup model« menu, and the
as signment of the four stick functions in the “Stick
mode” line (see pages 64 and 66) for the current mo-
del memory, or in the »General basic settings«
menu (description: page 154) for all future model me-
mories.
Which crystals can be used?
The mx-24s requires no plug-in crystals. The trans-
mission channel is selected by software: see the follo-
wing page.
Is the battery charged?
When you take receipt of your mx-24s transmit-
ter, the battery will be in the discharged state, so you
must fi rst charge it as described on pages 12 … 13. If
you do not do this, the battery will soon fall below the
pre-set threshold voltage, and you will see and hear
a warning signal to remind you to recharge it. The low
voltage threshold can be set to
any value in the range 9.3 to 11.0
V in the “Battery Warning Thres-
hold” line of the »General basic
settings« menu. The default set-
ting is 9.3 V.
Aerial fi tted?
Never switch the transmitter on unless the aeri-
al is screwed in. Even for prolonged testing you
should always fi t the aerial and extend it fully,
otherwise the transmitter may malfunction, with pos-
sible damage to the RF module.
When you wish to control a model it is fundamen-
tally essential to screw the ten-section telesco-
pic aerial into the transmitter and extend it fully.
Transmitter fi eld strength is at a minimum in an ima-
ginary line extending straight out from the tip of the
transmitter aerial. It is therefore fundamentally misgui-
ded to “point” the transmitter aerial at the model with
the intention of obtaining good reception.
Selecting the language
The
mx-24s allows you to select any of the following
four languages:
• German
• English
• French
• Italian
The language is selected by holding the HELP button
pressed in while you switch the transmitter on; the fol-
lowing display appears:
D
GB F I
The rotary control can now be used to select the desi-
red language. Confi rm your choice with a brief press
on the rotary control, or by pressing the ENTER but-
ton.
All settings are retained in full if you switch to a
different language.
Batt must
be re-
charged!!
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