ROYAL SX 
6   
  Timers for total transmitter operating time and 
model operating time (model-specific) 
 
Programming 
  Clearly designed, efficiently structured menus for 
simple programming 
  Optional keypad or two 3-D digi-adjusters for pro-
gramming 
  Clear text menu system, screen texts can be dis-
played in various national languages 
 
Model-specific settings 
  Flight phase switching 
With up to four flight phases for fixed-wing models 
and helicopters, variable transition time 
  Dual-Rate and Expo, variable for each flight phase 
separately 
  Five-point servo adjustment 
Servo travel right / left, centre and two intermediate 
adjustment points allow compensation for linkage 
inaccuracies and mechanical travel discrepancies 
  Three timers (slot, sum, interval) 
With variable alarm time and audible alarm 
  Separate timer for the model’s total operating time 
  Convenient model memory management 
Unrestricted model names, up to sixteen charac-
ters, copy and erase functions 
  Comprehensive set-up and mixer facilities for 
fixed-wing model aircraft and helicopters 
  Eight model templates cater for many different 
model types and help to minimise the program-
ming effort required 
 
Differences between transmitter versions: 
 
 
We are confident that you will rapidly learn to appreciate 
your ROYAL
pro
 once you have taken a little time to 
familiarise yourself with its facilities. These operating 
instructions  are  intended  to  guide  you  through  this 
process.  The system will give  your endless  hours  of 
pleasure in our mutual and fascinating hobby of model 
sport. 
Yours - the MULTIPLEX team 
 
2.1.  The ROYAL SX philosophy  
At the design stage of the ROYAL SX we placed par-
ticular emphasis on high-level user-friendliness, flexi-
bility and maximum standardisation. 
The user-friendly aspect results from the clearly ar-
ranged menu structure, the informative and well laid-
out  menus  and  the  large  number  of  useful  “little 
touches” which make it easier to program and use the 
transmitter. 
The transmitter’s flexibility is due to a combination of 
two features: the large number of facilities which are 
pre-defined and ready to use, and the ability to  vary 
almost  all  of  them  exactly  as  you  wish.  Transmitter 
controls (sticks, sliders and switches) and servos can 
be  assigned  without  restriction,  and  the  pre-defined 
mixers can be modified in any way you like. 
You can create your own “standard” by fine-tuning the 
pre-defined  mixers  and  assignment  lists  to  suit  your 
personal preferences and applications. 
Standardisation makes it easier and more intuitive to 
program the transmitter. Pre-defined model templates, 
mixers and assignment lists ensure that  you can set 
up  a  new  model  memory  with  just  a  few  button-
presses, and it is then ready for immediate use. 
Chapter “11. The ROYAL SX philosophy” describes 
the  background  to  the  system  and  related  facilities, 
and is  intended to  help  you  understand  the  way the 
transmitter works. It is therefore particularly important 
to read this section. 
2.2.  Arrangement of the instructions 
In  addition  to  other  subjects,  Part  1  (Chapters  1.  to 
10.) contains important information on the subject of 
safety !. This section also  includes all the  informa-
tion you need concerning the transmitter’s hardware. 
Essential reading! 
Part  2  (Chapter  11.)  concentrates  on  the  HOW  and 
WHY of the ROYAL SX’s wide-ranging software func-
tions.  This  background  information  makes  it  much 
easier  to  understand  the  sequence  of  operations 
when programming the transmitter.  
Part 3 and Part 4 describe step by step how to pro-
gram a fixed-wing model aircraft and a model heli-
copter. 
First  the  basic  functions  (aileron,  elevator,  rudder, 
throttle / collective pitch, roll, pitch, yaw) are “brought 
into play”. 
After this the text explains the essential steps required 
to expand and refine the model’s functions. 
Part  5  contains  a  detailed  description  of  all  the 
menus,  the  model  templates,  the  default  transmitter 
control  settings,  the  switch  assignments  and  much 
more.