Supplement to the manual 
MULTIPLEX Modellsport GmbH & Co.KG  •  Westliche Gewerbestraße 1  •  D-75015 Bretten (Gölshausen)  • www.multiplex-rc.de         Page 19 
2. Introduction 
We are delighted that you have decided to purchase a 
MULTIPLEX Cockpit SX M-LINK radio control system. 
You are now the owner of an RC transmitter which is 
based on the proven structures of the Cockpit SX on 
the one hand, and on the other offers the latest, future-
proof technology in the form of the 2.4 GHz M-LINK
system and a FLASH processor. 
The range of applications extends from simple two-axis 
model aircraft right up to demanding four-flap gliders 
and aerobatic models. At the same time the software 
includes a refined helicopter program for all current 
rotor systems, catering for the demands even of ex-
perienced model helicopter pilots. 
The essential features of the C
OCKPIT SX M-LINK:
x The latest 2.4 GHz M-LINK technology as 
standard:
FHSS (Frequency Hopping Spread Spectrum) 
12-bit resolution (3872 steps) 
14 / 21 ms servo frame rate, switchable 
x
Can be used for telemetry with a telemetry-
capable receiver:
Receiver battery voltage display / monitor, radio link 
quality display (LQI) as standard. 
Up to eight telemetry values in all can be displayed 
using external M-LINK sensors 
x Seven channels 
x  Eighteen model memories: 
With unrestricted model names (max. six characters), 
copy and erase functions 
x  Switchable flight phases with three phases for fixed-
wing model aircraft and four for model helicopters 
x  Flight phase specific digital trim system with clearly 
arranged graphical on-screen display of trim settings, 
and audible support 
x  Modern, ergonomically optimised case design for hand-
held or tray use 
x  Clearly arranged and grouped menus for simple 
programming 
x  Plain English (or German) menu system and screen 
texts 
x  Fast, easy programming with the 3-D digi-adjuster 
x  Two separately controlled timers, one with user-variable 
alarm time and audible alarm function 
x  Transmitter operating hours timer 
x  Audible battery alarm with user-variable warning 
threshold (transmitter battery voltage) 
x  Modern FLASH processor technology: 
Simple update method for new software versions 
x  Comprehensive set-up and mixer facilities  
for fixed-wing model aircraft and model helicopters 
x  Four pre-programmed model types minimise pro-
gramming effort required 
x  Selective Trainer mode available in standard form 
x  MULTIPLEX multi-function socket fitted as standard, for 
use as charge socket, Trainer mode interface, flight 
simulator, PC interface 
We are confident that you will thoroughly enjoy the 
facilities of your Cockpit SX M-LINK as soon as you 
have taken a little while to learn how to use it - a period 
in which these operating instructions will guide you - 
and that it will give you much pleasure in our shared 
and fascinating hobby of modelling. 
Yours - the MULTIPLEX team 
3. Safety Notes 
3.2. Range checking 
Regular range checks are very important, as they help 
you to feel confident that the radio control system is 
working properly, and enable you to detect changes in 
transmission characteristics. Range checking is par-
ticularly important if: 
x  you are using components for the first time, or 
have changed components, or changed their 
arrangement in the model; 
x  your model is fitted with components which have 
previously been involved in a crash; 
x  you have detected problems when using the 
system. 
Important: 
x  Always carry out the range check with the help of 
a friend who can secure and observe the model 
(vehicles and boats on the ground). 
x  Range checking should only be carried out in the 
special reduced-power mode (LO POW). 
! Never try to operate a model in this mode! 
The RC system must always be switched OFF, 
and then ON again before commencing 
normal flying or running operations.
x  Major metallic objects (wire fences, cars) will 
influence the test results. Keep well clear! 
This is the procedure: 
1.  Switch the transmitter on with the 3-D digi-adjuster 
pressed in. The LO POW  menu (low power) 
appears. Release the 3-D digi-adjuster again: 
2.  A brief press on the 3-D digi-adjuster activates 
range check mode: 
- The blue Status LED glows constantly. 
- The screen alternates between LO POW and 
the current display. 
- A regular warning sound alerts you to the reduced 
  power setting. 
3.  Hold the transmitter just as you would when using it 
to control a model: 
- approx. 1 m above the ground; 
- aerial angled at 90° horizontally, and facing right or 
  left: