Instruction Manual

Bedienungsanleitung

Manuel d’utilisation

Manuale di Istruzioni

18

18

®

®
2 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. 

Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury. 

This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical 

ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other 

property. This product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with 

incompatible components or augment product in any way without the approval of Horizon Hobby, Inc. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to 

assembly, setup or use, in order to operate correctly and avoid damage or serious injury.

WARNING AGAINST COUNTERFEIT PRODUCTS 

Thank you for purchasing a genuine Spektrum product. Always purchase from a Horizon Hobby, Inc. authorized dealer to 

ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited 

to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum.

NOTICE: This product is only intended for use with unmanned, hobby-grade, remote-controlled vehicles and aircraft. Horizon Hobby 

disclaims all liability outside of the intended purpose and will not provide warranty service related thereto.

Age Recommendation: Not for Children under 14 years. This is not a toy.

WARRANTY REGISTRATION

Visit community.spektrumrc.com today to register your product.

NOTICE: While DSMX allows you to use more than 40 transmitters simultaneously, when using DSM2 receivers, DSMX receivers in 

DSM2 mode or transmitters in DSM2 mode, do not use more than 40 transmitters simultaneously.

GENERAL NOTES 

• Models are hazardous when operated and maintained 

incorrectly. 

• Always install and operate a radio control system correctly. 

• Always pilot a model so the model is kept under control in 

all conditions. 

• Please seek help from an experienced pilot or your local 

hobby store. 

• Contact local or regional modeling organizations for 

guidance and instructions about fl ying in your area. 

• When working with a model, always power on the 

transmitter fi rst and power off the transmitter last. 

• After a model is bound to a transmitter and the model is set 

up in the transmitter, always bind the model to the 

transmitter again to establish failsafe settings. 

PILOT SAFETY

• Always make sure all batteries are fully charged before 

fl ying. 

• Time fl ights so you can fl y safely within the time allotted by 

your battery.

• Perform a range check of the transmitter and the model 

before fl ying the model. 

• Make sure all control surfaces correctly respond to transmitter controls before fl ying. 

• Do NOT fl y a model near spectators, parking areas or any 

other area that could result in injury to people or damage to 

property.

• Do NOT fl y during adverse weather conditions. Poor visibility, 

wind, moisture and ice can cause pilot disorientation and/or 

loss of control of a model. 

• When a fl ying model does not respond correctly to controls, 

land the model and correct the cause of the problem. 

NOTICE

All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc.

For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.

Meaning of Special Language

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this

product:

NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND little or no possibility of 

injury.

CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility of serious injury.

WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage and serious 

injury OR create a high probability of superfi cial injury.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 3

EN

BOX CONTENTS

Welcome to a new era of RC precision and freedom. With the DX18 you can fl y just about anything you want exactly the way you 

want to. And you’ll do so with less hassle than ever before. 

Its wide array of SpektrumTM AirWareTM programming functions is the most powerful ever made available in a handheld transmitter. Not only do you get a wealth of programming options for airplanes, helicopters and sailplanes, but you can freely assign any 

switch, stick, lever or slider to perform just about any function you want. You can perfectly balance the output of CCPM servos or 

multiple servos on a single control surface. You can even program an intricate sequence of events over multiple channels that are 

activated by a single switch.

Perhaps best of all, the DX18 gives you all these expert features without requiring you be a programming expert to use them. If

anything, its intuitive SimpleScrollTM programming interface and menu screens make model setup so simple, you just might fi nd 

yourself trying all kinds of new and exciting fl ying challenges that you never would have before. 

That’s why you must read this manual before you fl y with the DX18 for the fi rst time. There is so much this transmitter is capable of 

that you don’t want to miss a thing. These pages will help you get the most from it all. You’ll also fi nd important binding instructions 

as well as a handy troubleshooting guide.

• 2600mAh LiPo Transmitter Pack (Installed in transmitter)

• SD Card

• 12V DC Global Power Supply

• SPMAR9020 9-Channel Receiver 

(Not included with Transmitter-only versions)

• SPM6803 Male/Female Bind plug

• Manual 

• Hex Wrench

• DX18 Neck Strap

• DX18 Decal Sheet

BEFORE USING YOUR TRANSMITTER:

Before going any further, visit the Spektrum Community website at community.spektrumrc.com to register your 

transmitter and download the latest AirWare fi rmware updates. A registration reminder screen occasionally 

appears until you register your transmitter. When you register your transmitter, the reminder screen does not 

appear again.
4 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

TABLE OF CONTENTS

Chapter 1 

Transmitter Batteries ....................................................5

Charging Your Transmitter .............................................5

Transmitter Functions ...................................................6

Main Screen ................................................................8

Navigation ...................................................................8

Binding........................................................................9

Programming Failsafe Positions ..................................10

X-Plus .......................................................................11

SD Card ....................................................................11

Model Type Programming guide ..................................12

Common System Setup FunctIons

System Setup ............................................................13

Model Select .............................................................13

Model Type ................................................................13

Model Name ..............................................................13

F-Mode Setup ............................................................14

Flight Mode Name Setup ............................................14

Channel Assignment ..................................................14

Channel Input Confi guration ........................................15

X-Plus Input Confi guration ..........................................15

Trim Setup .................................................................15

Model Copy ...............................................................16

Model Reset ..............................................................16

Warnings ...................................................................16

Telemetry ..................................................................16

Prefl ight Setup ..........................................................17

Frame Rate ................................................................17

Bind ..........................................................................17

Trainer.......................................................................18

Analog Switch Setup ..................................................18

System Settings .........................................................19

Extra Settings ............................................................20

Serial Number ............................................................20

Calibrate....................................................................21

Transfer SD Card .......................................................21

Function List

Servo Setup ..............................................................22

D/R & Exponential ......................................................23

Differential (Air and Sail Types only) .............................23

V-Tail Differential (Air and Sail Types only) ....................24

Throttle Cut ...............................................................24

Throttle Curve ............................................................24

Mixing .......................................................................25

Sequencer .................................................................26

Range Test ................................................................27

Timer ........................................................................27

Telemetry ..................................................................27

Monitor .....................................................................28

X-Plus Monitor ...........................................................28

Chapter 2 ACRO (Airplane)

Aircraft Type ..............................................................29

Recommended Servo Connections ..............................29

Elevon Servo Control ..................................................29

Flap System ..............................................................30

ACRO Mixing ............................................................30

Acro Gyro Function ....................................................30

Chapter 3 HELI (Helicopter)

Swash Type ...............................................................31

Pitch Curve ...............................................................31

Swashplate ................................................................31

Gyro ..........................................................................32

Governor ...................................................................32

Tail Curve .................................................................32

Heli Mixing ...............................................................32

Chapter 4 SAIL (Sailplane)

Sailplane Type ............................................................33

Camber Preset ...........................................................33

Camber System .........................................................33

Sail Mixing .................................................................34

Chapter 5 Receiver Installation and 

Power System Requirements

AR9020 Receiver Specifi cations: ................................34

Receiver Installation ...................................................34

Power System Requirements ......................................35

Recommended Power System Guidelines ....................35

Chapter 6 Physical Transmitter Adjustments

Mode Conversion .......................................................35

Adjust Stick Tension ..................................................35

Control Stick Length Adjustment ................................35

Adjust Throttle Friction Straps ....................................36

Throttle Ratchet Strip Installation .................................36

2.4Ghz Troubleshooting Guide ....................................37

Parts list ....................................................................37

AMA National Model Aircraft Safety Code ....................38

FCC Information .........................................................39

FAA Information .........................................................39

1-Year Limited Warranty .............................................40

Warranty and Service Contact Information ...................41

Parts Contact Information ...........................................41

Compliance Information for the European Union ...........41
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 5

EN

TRANSMITTER BATTERIES

• Read all safety precautions and literature prior to use of this product

• Never allow minors to charge battery packs

• Never drop charger or batteries

• Never attempt to charge damaged batteries

• Never attempt to charge a battery pack containing different types 

of batteries

• Never charge a battery if the cable has been pinched or shorted

• Never allow batteries or battery packs to come into contact with 

moisture at any time

• Never charge batteries in extremely hot or cold places (recommended between 50–80 degrees F or 10–27 degrees C) or place 

in direct sunlight

• Always disconnect the battery after charging, and let the charger 

cool between charges

• Always inspect a new battery before charging

• Always terminate all processes and contact Horizon Hobby if the 

product malfunctions

• Always keep batteries and charger away from any material that 

could be affected by heat (such as ceramic and tile), as they can 

get hot

• Always end the charging process if the charger or battery becomes hot to the touch or starts to change form (swell) during the 

charge process

Battery and Charging Precautions and Warnings

Failure to exercise caution while using this product and comply with the following warnings could result in product malfunction, 

electrical issues, excessive heat, FIRE, and ultimately injury and property damage.

Charging Your Transmitter

The DX18 has an internal charger designed to charge the 

included 2-cell LiPo battery at a charge rate of 200mAh. The 

charge port on the right side of the transmitter is not polaritydependent. 

NOTICE: Never connect an external battery charger to your 

DX18 transmitter. If you wish to charge the LiPo battery using a 

LiPo charger, you must remove the battery from the transmitter 

before charging.

The fi rst time you charge the transmitter battery, the charge time 

may be 12-15 hours. Always charge the transmitter on a heat 

resistant surface.

1. Power off your transmitter. 

2. Connect the power supply connector to the transmitter 

charge port. 

3. Connect the power supply to a power outlet using the appropriate adapter. 

4. The blue LED on the front of the transmitter turns on during 

charging and turns off when the battery is fully charged.

5. Disconnect the transmitter from the power supply once 

charging is complete and disconnect the power supply from 

the power outlet.

CAUTION: Never leave a charging battery unattended.

LED indicators

The blue LED indicates the transmitter battery is charging. The 

orange LED indicates the transmitter is powered on and there is 

radio transmission. 

Battery Alarm

The System Settings Screen allows you to change the battery 

type and low alarm settings. See “System Settings” for more 

information.

• An alarm will sound when the battery reaches the low voltage limit (4.3V for NiMH, 6.4V for LiPo).

CAUTION: Never change the low voltage limit for LiPo 

batteries from 6.4V. Doing so could over-discharge the 

battery and damage both battery and transmitter.
6 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

Function

1 Antenna 1

2 RIght Trim

3 Right Knob

4 Switch E

5 Switch H

6 Switch G

7 Switch F

Function

8 Throttle/Aileron Stick (Mode 1)

Elevator/Aileron Stick (Mode 2) 

Throttle/Rudder Stick (Mode 3)

Elevator/Rudder Stick (Mode 4)

9 Elevator Trim (Mode 2, 4)

Throttle Trim (Mode 1, 3)

10 Aileron Trim (Mode 1,2)

Rudder Trim (Mode 3,4)

11 Roller

12 Charge Port

13 On/Off Switch

14 LCD

Function

15 Clear Button

16 Back Button

17 Speaker Grill

18 Rudder Trim (Mode 1,2)

Aileron Trim (Mode 3,4)

19 Elevator Trim (Mode 1,3)

Throttle Trim (Mode 2,4)

20 Elevator/Rudder Stick (Mode 1)

Throttle/Rudder Stick (Mode 2)

Elevator/Aileron Stick (Mode 3)

Throttle/AileronStick (Mode 4)

21 Switch C

Function

22 Switch B

23 Switch A

24 Switch D

25 Bind/Switch I

26 Left Trim

27 LED

The transmitter comes with a thin, 

clear plastic fi lm applied to some 

front panels for protection during 

shipping. Humidity and use may 

cause this fi lm to come off. Carefully 

remove this fi lm as desired. 

TRANSMITTER FUNCTIONS

11

12

13 14

15

18

19

20

21

22

23

24

25

26 27

16

17

10

9

8

7

6

5

4

3

2

1
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 7

EN

Function

1 Throttle Spring Tension 

Adjustment (Mode 2,4)

2 Left Lever

3 Left Rear Grip

4 Trainer Port

5 SD Card

6 Battery Cover

Function

7 Charge Port

8 Throttle Spring Tension 

Adjustment (Mode 1,3)

9 Right Rear Grip

10 Right Lever

11 Gimbal Stick Tension Adjustment

12 Handle/Antenna 2

11

10

9

8

7

6

5

4

3

2

1

12
8 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

• Turn the scroll wheel to move through the screen content or 

change programming values. Press the scroll wheel to make 

a selection. 

• Use the Back button to go to the previous screen (for 

example, to go from the Mixing Screen to the Function List). 

• Use the Clear button to return a selected value on a screen 

to the default setting.

• Direct Model Access enables you to access the Model Select 

screen without powering off the transmitter. Anytime the 

transmitter power is on, press the Clear and Back buttons to 

access the Model Select screen.

• Press and hold the roller while powering on the transmitter 

to show the System Setup list. No radio transmission occurs 

when a System Setup screen is displayed, preventing accidental damage to linkages and servos during changes to 

programming.

• The Main Screen appears when you power on the transmitter. Press the scroll wheel once to display the Function List. 

• When you want to change a value in a screen for a particular control position, move the control to the desired position 

to highlight the value you want to change, such as 0/1/2, 

up/down or left/right. 

NAVIGATION

Enter, Choose 

or Exit

Move between 

options or change 

value in an option

Hold for 3 

seconds and 

release to move to 

the Main Screen

Press Turn Hold

Tip: The tick mark below shows the current switch position.

Rolling and clicking the roller turns the selected box black, indicating that the value or condition will act on that position.

Main Screen

Function

A Model Memory

B Model Name

C Transmitter Battery Charge Level

D

Digital Battery Voltage

(an alarm sounds and the screen fl ashes when battery charge gets 

down to 4.3V when using an NiMH battery or 6.4V for a LiPo battery.)

E Model Type

F Elevator Trim (Modes 2 and 4) 

Throttle Trim (Modes 1 and 3)

G Aileron Trim (Modes 1 and 2) 

Rudder Trim (Modes 3 and 4)

H Model Memory Timer

I Rudder Trim (Modes 1 and 2) 

Aileron Trim (Modes 3 and 4)

J Throttle Trim (Mode 2 and 4) 

Elevator Trim (Mode 1 and 3)

K Timer

J

K

I H G

F

E

D

C

A B

Also displays R Trim values when the Right 

Trim button is pressed

Also displays L Trim values when the Left 

Trim button is pressed
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 9

EN

BINDING

Binding is the process of programming the receiver to recognize the GUID (Globally Unique Identifi er) code of a single specifi c transmitter. The DX18 and AR9020 are pre-bound at the factory. You will need to rebind after the model programming is initially set up to 

fully program the model’s failsafe positions.

2. 3. 4. 

6. 7. 

1. 

5. 

Binding Using the Receiver and Receiver Battery

Binding Using the Receiver and ESC

1. 2. 3. 

4. 5. 6. 

1. Move the throttle stick to the lowest position and power off 

the transmitter.

2. Insert the bind plug into the BIND/DATA port on the receiver.

3. Connect a fully charged receiver pack to any open port on 

the receiver. The orange LED on the receiver rapidly fl ashes 

when the receiver is in bind mode.

4. Press and hold the transmitter bind button while powering 

the transmitter on. 

5. Release the Bind button when the transmitter screen 

displays “Binding”. Binding is complete when the orange 

transmitter and receiver LEDs are on solid.

6. Power off the receiver and remove the bind plug.

1. Lower throttle to the lowest position and make sure the 

transmitter is powered off.

2. Insert the bind plug into the BIND/DATA port.

3. Insert the ESC plug into the THRO port.

4. Connect battery to ESC and turn on ESC switch, if available. 

The receiver’s LED will rapidly fl ash when the receiver is 

ready to bind.

5. While pressing the Bind button, power on the transmitter. 

6. Release the Bind button after the receiver has stopped fl ashing rapidly, once the receiver’s LED stays illuminated; this 

indicates the receiver is bound to the transmitter. The screen 

also provides binding information.

7. Remove the bind plug from the receiver. 

CAUTION: When using the DX18 with parkfl yer receivers, only use such receivers in parkfl yer-type aircraft. (small electric 

airplanes or mini and micro helicopters). Installing park fl yer receivers in larger aircraft could cause signal blocking and loss 

of connection.

Mode 2 shown

Mode 2 shown

Hold button while powereing on

Hold button while powereing on
10 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

PROGRAMMING FAILSAFE POSITIONS

You establish failsafe positions when you bind your transmitter and receiver. If radio signal connection is lost between the transmitter 

and receiver, the receiver immediately moves the aircraft control surfaces to the failsafe positions. The Spektrum AR9020 receiver 

has three failsafes programming options: SmartSafe, Hold Last Command, and Preset. 

If you assign the receiver THRO channel to a transmitter channel other than throttle , we recommend using Preset failsafe with the 

throttle in the low position.

NOTICE: Failsafe features vary according to receiver. Always consult the receiver instruction manual for failsafe features.

Before fl ight, ALWAYS confi rm the failsafe functions as you would expect. 

SmartSafe Failsafe

SmartSafe is a failsafe acting only on the throttle channel that 

offers the following benefi ts:

• Prevents electric motors from operating when the receiver 

power is on and the transmitter power is off.

• Prevents the speed controller from arming until the throttle is 

moved to the low throttle position.

• Powers off an electric motor and reduces gas/glow engines 

to idle if signal is lost.

To Program SmartSafe, move the throttle to the low or off position before putting the transmitter in bind mode.

To Test the SmartSafe

1. Power the transmitter and receiver on.

2. Power off the transmitter. The throttle should immediately 

move to the failsafe position.

CAUTION: Make sure the aircraft is restrained on the 

ground. If failsafe is not set, your aircraft might advance to mid 

or full throttle.

Hold Last Command

The Hold Last Command failsafe maintains the last command 

on all channels except throttle; if radio signal is lost, the aircraft 

maintains the commanded heading until the receiver regains 

signal.

To program Hold Last Command, follow the provided binding 

instructions in this instruction manual. 

To Test Hold Last Command

1. Power on the transmitter and receiver.

2. Move one of the control sticks and hold the input.

3. While holding the control input, for example, a small amount 

of rudder, power off the transmitter. The rudder should 

maintain the input command.

CAUTION: Make sure the aircraft is restrained on the 

ground. If the failsafe does not function as you would expect, the 

aircraft throttle might advance to mid or full throttle.

Preset Failsafe

The Preset failsafe moves all channels to their programmed 

failsafe positions. 

We recommend using Preset failsafe to deploy spoilers on 

sailplanes to prevent a fl yaway if radio signal is lost.

To program Preset failsafe:

1. Insert the bind plug in the bind port on the receiver and 

power on the receiver.

2. Remove the bind plug when the orange LED on the main 

receiver and all attached remote receivers fl ash rapidly. The 

orange receiver LEDs continue fl ashing.

3. Move the transmitter control sticks and switches to the 

desired Preset failsafe position. Power the transmitter on.

4. Failsafe programming is complete when the orange LEDs on 

the transmitter and all receivers are on solid.

CAUTION: Make sure the aircraft is restrained on the

ground. If the failsafe does not function as you would 

expect, the aircraft throttle might advance to mid or full throttle.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 11

EN

SD CARD

X-PLUSTM

Installing the SD Card

The included SD Card enables you to:

• Import (copy) models from another DX18 transmitter

• Export (transfer) models to another DX18 transmitter

• Update AirWareTM software in the transmitter

To install the SD Card:

1. Power off the transmitter.

2. Remove the battery door.

3. Press the SD Card into the card slot with the card label 

facing upward.

4. Install the battery door.

Exporting the Transmitter Serial Number 

to the SD Card

Exporting the transmitter serial number to the SD Card allows 

you to copy and paste the serial number into the registration 

screen at community.spektrumrc.com .

To export the serial number:

1. Press and hold the scroll wheel while powering the 

transmitter on until the System Setup list appears.

2. Scroll to the System Settings menu. Press the scroll wheel 

once to open the menu.

3. Select NEXT on the System Settings and Extra Settings 

screens.

4. When the Serial Number screen appears, select EXPORT.

5. Power off the transmitter and remove the SD Card from the 

transmitter.

6. Insert the SD Card in your computer and open the .txt fi le on 

the card.

7. Copy and Paste the serial number into the Registration 

screen on the Spektrum Community site ( community.

spektrumrc.com ).

X-Plus Channels and Failsafe

Failsafe is not supported for servos connected to the X-Plus 

Module. We recommend that no failsafe should be expected or 

attempted for a servo connected through the X-Plus Module. 

However, servos connected to the X-Plus Module will hold last 

command in the event of a failsafe condition.

To Activate X-Plus

1. Open the Frame Rate Menu in System Setup. 

2. Scrolll to X-Plus and press the scroll wheel to activate. The 

X-Plus Inputs screen is now active in the Channel Assign 

menu. 

AUX6 and AUX7 channels are available on 12-channel receivers 

when X-Plus is active. AUX6 and AUX7 are 2048 resolution and 

22ms frame rate (12-channel receivers only).

Channels X+1 and X+2 are duplicate channels of channels 11 

and 12 on a 12 channel receiver with X-Plus active. If channels 11 and 12 require any adjustment for travel adjust, servo 

reversing, sub trim or any other function, adjust channels X+1 

and X+2. Note that channels 11 and 12 will also show on the 

X-Plus monitor as channels X+1 and X+2. 

If you select 11ms frame rate before you activate X-Plus, the 

transmitter reverts to 22ms frame rate when X-Plus is active.

CAUTION: Do NOT connect throttle or any primary 

control surface to the X-Plus Module. The X-Plus channels are intended to be used for auxiliary functions only. X-Plus 

channels have a resolution of 512 and variable latency from 

22ms to about 88ms. When X-Plus is active, the fi rst 10 channels default to 22ms. 

Refer to community.spektrumrc.com for more information about 

X-Plus options.

from Channel Assign menu
12 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

MODEL TYPE PROGRAMMING GUIDE

Menu options show upon model type selection. These menu 

options vary between Model Types (Airplane Helicopter and Sailplane), but are identical for all models in that type. Subsequent

aircraft type (AIrcraft, Swashplate or Sailplane) selections make 

other menu options appear. 

System Setup List:

Model Select

Model Type 

Model Name

Aircraft Type

F-Mode Setup

Channel Assign

Trim Setup

Model Copy

Model Reset

Warnings

Telemetry 

Preflight Setup

Frame Rate

Bind

Trainer

Analog Switch Setup

System Settings

Transfer SD Card

Function List: 

Servo Setup

D/R and Expo

Differential 

V-Tail Differential 

Throttle Cut

Throttle Curve

Gyro1

Gyro2

Flap System 

Mixing

Sequencer

Range Test

Timer

Telemetry 

Monitor

XPlus Monitor 

System Setup List:

Model Select

Model Type 

Model Name

Swashplate Type

F-Mode Setup

Channel Assign

Trim Setup

Model Copy

Model Reset

Warnings

Telemetry 

Preflight Setup

Frame Rate

Bind

Trainer

Analog Switch Setup

System Settings

Transfer SD Card

Function List: 

Servo Setup

D/R and Expo

Throttle Cut 

Throttle Curve 

Pitch Curve 

Swashplate 

Gyro 

Governor 

Tail Curve 

Mixing

Sequencer

Range Test

Timer

Telemetry

Frame Rate 

Monitor

XPlus Monitor 

System Setup List:

Model Select

Model Type 

Model Name

Sailplane Type

F-Mode Setup

Channel Assign

Trim Setup

Model Copy

Model Reset

Warnings

Telemetry 

Preflight Setup

Frame Rate

Bind

Trainer

Analog Switch Setup

System Settings

Transfer SD Card

Function List: 

Servo Setup

D/R and Expo

Differential 

V-Tail Differential 

Throttle Cut

Motor Curve 

Camber Presets 

Camber System 

Mixing

Sequencer

Range Test

Timer

Telemetry

Frame Rate 

Monitor

XPlus Monitor 
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 13

EN

COMMON SYSTEM SETUP FUNCTIONS

Model Select

Model Select enables you to access any of the 50 internal model 

memory locations in the Model Select list.

1. Scroll to the desired model memory in the Model Select list.

2. When the desired model memory is highlighted, press 

the scroll wheel once to select the model. The transmitter 

returns to the System Setup List. Direct Model Access

Press the Clear and Back buttons from the Main Screen or a 

telemetry screen to access Model Select.

SYSTEM SETUP

Model Type

Select from Airplane, Helicopter or Sailplane model types.

IMPORTANT: When you select a new model type, you will delete 

any programming data in the current model memory. Always 

confi rm the desired model memory before changing model 

types.

It will be necessary to re-bind after resetting the model type. 

To change the model type:

1. Scroll to the desired model type and press the scroll wheel. 

The Confi rm Model Type screen appears.

2. Select Yes and press the scroll wheel to confi rm the model 

type. All data will be reset. Selecting No will exit the Confi rm 

Model Type screen and return to the Model Type screen.

Model Name

Model Name enables you to assign a custom name to the 

current model memory. Model names can include up to 20 

characters including spaces.

To add letters to a Model Name:

1. Scroll to the desired letter position and press the scroll 

wheel once. A fl ashing box appears.

2. Scroll left or right until the desired character appears. Press 

the scroll wheel once to save the character.

3. Scroll to the next desired letter position. Repeat Step 1 and 2 

until the Model Name is complete.

4. Select BACK to return to the System Setup list.
14 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

Flight Mode Name Setup

Enables you to assign custom names to the Flight Mode 

positions. Flight Mode names can include up to 20 characters 

including spaces.

To change the Flight Mode name:

1. Scroll to the Flight Mode name you wish to change and 

press the scroll wheel.

2. Scroll to the character position you wish to change and press 

the scroll wheel once. A fl ashing box appears.

3. Scroll left or right until the desired character appears. Press 

the scroll wheel once to save the character.

4. Repeat Steps 2 and 3 until the Model Name is complete. 

5. Select BACK to return to the Flight Mode Names list.

F-Mode Setup

Use the Flight Mode Setup menu to assign switches to fl ight 

modes. 

Sailplane Flight Mode Setup

You can assign up to ten fl ight modes using any combination of 

up to three switches. You can also assign a priority switch. When 

the priority switch position is active, only the current fl ight mode 

is active, regardless of other switch positions.

Mode Number of Switches Number of Flight Modes

Aircraft 2 5

Heli 3 (including Throttle Hold) 5 (including Throttle Hold)

Number 

of Flight 

Modes

2 3 3* 4 4 5

Switch 1 

(number of 

positions)

2P 3P 2P 2P 3P 3P

Switch 2 

(number of 

positions)

2P 3P 2P 3P

Flight Mode

 1 Launch Launch Launch Launch Launch Launch

 2 Cruise Cruise Cruise Cruise Cruise Cruise

 3 Land Land Land

 4 Thermal Thermal Thermal Thermal

 5 Speed Speed

*Must be set up in a 4/5 fl ight mode.

Channel Assignment

The Channel Assignment screen allows you to reassign almost 

any receiver channel to a different transmitter channel. For 

example, the receiver gear channel could be re-assigned to the 

transmitter throttle channel.

When X-Plus is active in the transmitter, the DX18 recognizes 

channels 11 and 12 (AUX 6 and AUX 7) on a 12-channel 

receiver. Channels 11 and 12 will have 22ms frame rate and 

2048 resolution.

X-Plus allows for up to 8 additional channels over the 10 

primary channels.

1. Scroll to the receiver channel you wish to change.

2. Press the scroll wheel once and scroll left or right to change 

the receiver input selection.

3. Press the scroll wheel a second time to save the selection.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 15

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Channel Input Confi guration

The Channel Input Confi guration screen enables you to assign a 

transmitter channel to a different control stick or switch. 

1. Select NEXT on the RX Port Assignments screen to access 

the Channel Input Confi guration screen.

2. Scroll to the transmitter channel you wish to re-assign and 

press the scroll wheel. The box around the current input 

selection fl ashes. 3. Scroll left or right to select the desired control stick or 

switch.

4. Press the scroll wheel to save the selection.

Trim Setup

Use the Trim Setup screen to change the size of the trim step 

and the trim type.

Trim Step

Adjusting the trim step value determines how many “clicks” of 

trim you input each time you press the trim button. Changing 

the trim step value to 0 disables the trim for the channel.

To change the trim step value:

1. Scroll to the trim step channel you wish to change. 

2. Select the trim step value and scroll left or right to change 

the value.

3. Press the scroll wheel to save the selection.

Trim Type

The two Trim Type options are Common and F Mode. 

Common trim type maintains the same trim values for all fl ight 

modes. 

F Mode trim type enables you to save trim values for individual 

fl ight modes if you fi nd, for example, the aircraft requires aileron 

trim in Flight Mode 1 but not in Flight Mode 2. 

Trim Assignment

In a few instances, you can reassign a trim to a different location.

Aircraft Model Type

Throttle

- Throttle Digital trim button (default)

- Left Analog lever

- Right Analog lever

Helicopter Model Type

Throttle and Pitch Hover Trim-Used to trim the throttle and pitch 

setting for precision hovering. Note: This does not affect normal 

throttle trim operation.

-Right Knob

-Left Analog Lever

-Right Analog Lever

-L Trim

-R Trim

Active Gyro and Governor Trim-Used to trim the gyro and governor settings in fl ight.

-L Trim

-R Trim.

Trim Location

Normal and Cross trim types are available. Normal trims align 

with the control stick; for example, the throttle trim is next to the 

throttle stick.

Cross trims reverse the position of the trims; for example, the 

Throttle trim is next to the Elevator stick and vice versa.

To change the Trim Position from Normal to Crossed, select 

Normal at the bottom of the Trim Setup screen and press the 

scroll wheel.

IMPORTANT: Crossed trims will cross both sets of trims for both 

gimbals.

X-Plus Input Confi guration

The X-Plus Input Confi guration screen enables you to assign any 

X-Plus channel to any transmitter input.

1. Select NEXT on the Channel Input Confi g screen to access 

the X-Plus Input Confi g screen.

2. Scroll to the X-Plus channel you wish to change.

3. Press the scroll wheel once and scroll left or right to change 

the X-Plus Input for that X-Plus channel.
16 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Warnings

The Warnings menu enables you to program a tone or vibration 

alert during power on of the transmitter for any selected switch 

or channel position. 

The alarm activates and an alert message appears on the 

screen if a specifi c switch or control stick is in an unsafe position when you power the transmitter on.

Return the switch or control stick to the safe position to silence 

the alarm. For safety reasons, the default Throttle alarm activates if the 

throttle position is above 10%.

Telemetry

Installing the optional telemetry module and sensors enables the 

display of aircraft performance data on the transmitter screen. 

You can also enable Data Logging to save a telemetry fi le on 

the SD Card and view the data in the Spektrum STi(TM) mobile 

application.

Telemetry Settings

Display

Telemetry display options include:

 Tele: When you press the scroll wheel, the Telemetry 

screens appear and the Main Screen is disabled. 

 Main: Telemetry alerts appear on the Main screen, but all 

Telemetry screens are disabled.

 Roller (Default): Allows you to toggle between the Telemetry screens and the main screen by pressing the scroll 

wheel. 

 Auto: The Telemetry screen automatically appears as soon 

as the transmitter receives data from the telemetry module.

Units

Scroll to Units and press the scroll wheel to change between US 

and Metric.

File Settings

 This is used to select the data logging settings.

File Name

1. Select File Name to assign a custom fi le name. 

2. The File Name screen appears, allowing you to name the fi le 

as you would for a Model Name or Flight Mode Name. The 

fi le name can include a maximum of 8 characters.

3. Press BACK to save the name.

Start

1. Select Start to assign a specifi c switch position or stick 

position that activates Data Logging. 

2. Press the scroll wheel once to save the selection.

Model Reset

Use the Model Reset menu to delete all model programming in 

the active model memory. Reset returns all model settings to 

the default settings and erases all programming in the selected 

model.

After a model reset it is necessary to re-bind.

Model Copy

The Model Copy menu enables you to duplicate model programming from one Model List location to another. 

Use Model Copy to:

• Sort the models in the Model List by brand, model type or 

power source

• Save a default model copy before experimenting with programming values

• Expedite programming for a model using a similar programming setup.

IMPORTANT: Copying a model program from one model 

memory to another will erase any programming in the “To” 

model memory. 

To copy model programming:

1. Make sure the model program you wish to copy is active. If 

the desired model program is not active, select Cancel and 

change the active model in the Model Select menu.

2. Select the model memory next to “To” and scroll to the 

desired model memory. Press the scroll wheel once to save 

the selection.

3. Select Copy and the Confi rm Copy screen appears.

4. Select Copy to confi rm. Selecting Cancel will return to the 

Model Copy screen.

You cannot use the Model Copy screen to copy model programming to an SD Card. To copy model programming to the SD 

Card, please see “Transfer SD Card”.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 17

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Frame Rate

The Frame Rate menu enables you to change the frame rate, 

modulation mode and activate XPLUS.

Select the option you wish to change and press the scroll wheel.

Frame Rate

You must use digital servos if you select 11ms frame rate. 

Analog or digital servos can be used with 22ms frame rate.

Modulation Mode

We recommend using DSMX (default) modulation mode. When 

DSMX is active, the transmitter operates in DSMX with DSMX 

receivers and DSM2 with DSM2 receivers. The transmitter automatically detects DSM2 or DSMX during binding and changes 

the mode accordingly to match the receiver type you are using.

If you select DSM2, the transmitter operates in DSM2 regardless 

of whether it is bound to a DSM2 or DSMX receiver.

X-Plus Activation

Activate X-Plus channels in the Frame Rate Screen. You can set 

X-Plus to INH (inhibit) or Act (activate). 

NOTICE: While DSMX allows you to use more than 40 transmitters simultaneously, do not use more than 40 transmitters 

simultaneously when using a DSM2 receiver or a transmitter in 

DSM2 mode.

CAUTION: Do NOT connect throttle or any primary 

control surface to the X-Plus Module. The X-Plus 

channels are intended to be used for auxiliary functions only. 

X-Plus channels have a resolution of 512 and variable latency 

from 22ms to about 88ms. When X-Plus is active, the fi rst 10 

channels default to 22ms.

Prefl ight Setup 

The Prefl ight Setup menu option enables you to program a 

pre-fl ight checklist that appears each time you power on the 

transmitter or when you select a new model memory. Each item 

on the list must be confi rmed before you can access the Main 

Screen. 

Enabled

When Enabled is set to NO, Data Logging is turned off.

Select YES to save Telemetry data to the SD Card. The SD Card 

must be installed in the transmitter to select YES.

CAUTION: If you access the Telemetry menu from the 

Function List, you may see a Frame Loss appear when 

you exit the menu. The Frame Loss is not an error, however there 

is a momentary loss of radio signal when exiting the Telemetry 

screen. Do NOT access the Telemetry menu during fl ight.

Bind

The Bind menu enables you to bind a transmitter and receiver 

without powering off the transmitter. This menu is helpful if you 

are programming a model and need to bind the receiver for 

failsafe positions.

See “Programming Failsafe Positions” for more information.
18 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Trainer 

The DX18 features a programmable trainer function with 4 

trainer modes. The transmitter assigns the trainer function to 

Switch I. The 4 trainer modes include: 

Inhibit

In Inhibit, the slave transmitter must have the same programming as the master transmitter (e.g., servo reversing, travel 

adjust, sub-trim, trims).

Programmable

Programmable mode enables you to program the master transmitter to transfer any or all individual channels when you activate 

the trainer switch. This mode is ideal for beginners learning to 

control individual channels while the master transmitter 

maintains control of all other channels.

The slave transmitter should be in PilotLink Slave mode, if 

available. It is not necessary to have model programming in the 

slave transmitter.

Pilot Link Master

When Pilot Link Master is active, the slave transmitter controls 

the primary stick functions (Throttle, aileron, elevator and rudder) 

while the master maintains control of all other channels and 

functions (including dual rates and auxillary switch positions). 

PilotLink Master is ideal for complex models as the master 

transmitter maintains control of all secondary functions, for 

example fi lght modes, retracts, fl aps and brakes.

Slave

Use Slave mode when using the DX18 as a slave transmitter and 

PilotLink is active in the master transmitter.

DX18 Trainer Operation

1. Bind the master transmitter to the model.

2. Connect the trainer cord (SPM6805) to the back of the 

master transmitter.

3. Make sure the master and slave transmitter battery packs 

are fully charged.

4. Make sure the slave transmitter is powered off; the slave 

transmitter receives power when you connect the trainer 

cord.

5. Connect the trainer cord to the slave transmitter.

6. The slave transmitter screen displays information but does 

not send a signal to the model.

7. Press the trainer button on the master transmitter to transfer 

model control from the master to the slave. 

8. Release the trainer button and the master transmitter 

regains control of the model..

Analog Switch Setup 

Allows all sticks and pots to be used as a kick point to turn on 

functions like mixes. To add a kick point:

1. Move the control stick, lever or knob to the desired kick point 

position.

2. Scroll to the desired kick point and press the scroll wheel 

once to save the selection. 

To delete a kick point, scroll to the desired kick point and press 

the Clear button.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 19

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System Settings

The System Settings menu consists of four screens: System Settings, Extra Settings, Serial Number and Calibrate. Select NEXT 

or PREV to move between screens. 

User Name

The User Name fi eld displays your name in the lower right 

corner of the main screen.

To Program a User Name

1. Scroll to User Name and press the scroll wheel. The User 

Name screen appears.

2. Scroll to the desired character position and press the scroll 

wheel. Scroll left or right to change the character and press 

the scroll wheel to save the selection. The User Name can 

contain a maximum of 20 characters, including spaces.

3. Press the Back button to save the User Name and return to 

the System Settings screen.

Contrast

To adjust the screen contrast:

1. Scroll to Contrast and press the scroll wheel.

2. Scroll left or right to adjust the contrast value. Lower numbers lighten the contrast, higher numbers darken it.

3. Press the scroll wheel once to save the selection.

Backlight

The Backlight fi eld adjusts the backlight appearance time and 

brightness. You have the option to turn the backlight off for 

models you fl y during the day and turn the backlight on for night 

fl ying models.

The backlight time options are:

Off: Appears for a short time when you power on the transmitter.

On: The backlight is always on.

Set Time: The backlight is on for 3, 10, 20, 30, 45 or 60 seconds before automatically turning off. Press the scroll wheel 

once to turn the backlight on. 

The backlight percentage adjusts the backlight intensity and it 

is adjustable in 10% increments from 10% (darker) to 100% 

(brighter). 

Mode

You can change the control stick mode from

Mode 2 to Mode 4 or Mode 1 to Mode 3.

Mode changes that require movement of complete gimbal 

assemblies must be performed by a Horizon Hobby service 

center.

To change the gimbal stick mode:

1. Scroll to Mode and press the scroll wheel. 

2. Scroll left or right to change the gimbal stick mode. Press 

the scroll wheel to save the selection.

3. Select NEXT in the lower left corner until the Calibration 

screen appears.

4. Move all transmitter controls to the center position and 

complete the calibration process before exiting the System 

Settings menu. See “Calibrating Your Transmitter” for more 

information.

Battery Alarm

Battery Alarm enables you to change the transmitter battery type 

and the alarm voltage limit. The alarm activates when the battery 

reaches the low voltage limit.

To change the battery alarm:

1. Scroll to the battery type and press the scroll wheel once to 

change the type to LiPo or NiMH.

CAUTION: Never select NiMH when a LiPo battery is 

installed in the transmitter. Doing so may over-discharge 

the LiPo battery and damage the battery, transmitter or both.

2. Scroll to the battery voltage and press the scroll wheel. Turn 

the scroll wheel left or right to change the voltage level. 

Press the scroll wheel again to save the selection.

CAUTION: Never adjust the low voltage limit for the LiPo 

battery pack below 6.4V. Doing so could over-discharge 

the battery pack and damage both battery pack and transmitter.

Selecting a Language

In the Systems Settings screen, rotate the roller to highlight 

Language then press the roller to select the Language function. 

Rotate the roller to select the desired Language. When the 

desired Language is selected, press the roller to accept that 

Language. Names you input will not be affected by language 

change. 

Selecting a Region (EU Version)

The Region fi eld enables you to change the region of operation 

and power output for transmitters sold in the European Union. 

Region options include:

EU-328 FR-328

If you are using the transmitter in France, you must select 

FR-328 to comply with power output regulations in France. 

To change the region:

1. Scroll to Region and press the scroll wheel.

2. Scroll left or right to change the region and press the scroll 

wheel once to save the selection.

Transmitters sold outside of Europe do not have the option to 

change the region from US-247.
20 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Extra Settings

The Extra Settings screen enables you to:

• Turn sounds off or on

• Turn vibration off or on

• Change the appearance of the trim indicators

System Sounds

Scrolling to System Sounds and pressing the scroll wheel turns 

sounds on (Active) or off (Inhibit).

Vibrator

Scrolling to Vibrator and pressing the scroll wheel turns vibration 

alerts on (Active) or off (Inhibit).

Trim Display

Trim display changes the shape of the trim indicators on the 

Main Screen. Display options include:

• Boxed Boxes (Default) The indicators appear as an outlined 

box when you adjust the trim.

• Boxed Arrows The indicators appear as outlined arrows 

when you adjust the trim.

Inhibit Removes all trim bars and indicators from the Main 

Screen.

To change the Trim Display:

1. Scroll to Trim Display and press the scroll wheel once.

2. Scroll left or right to change the Trim Display option. Press 

the scroll wheel to save the selection.

Serial Number

The Serial Number screen displays the transmitter serial number 

and AirWare version.

Reference the Serial Number screen any time you need to 

register your transmitter or update the AirWare from the 

Spektrum Community website.

Exporting the Serial Number to the SD Card

You may fi nd it helpful to export the transmitter serial number to 

a text fi le for your personal records or when you are registering 

the transmitter on the Spektrum Community.

To export the transmitter serial number:

1. Insert an SD Card in the card slot on the transmitter.

2. Scroll to EXPORT and press the scroll wheel. The SD Status 

screen appears and should display MY_DX18.xml in the 

middle of the screen.

3. Press the scroll wheel again to return to the Serial Number 

screen.

4. Power off the transmitter and remove the SD Card from the 

transmitter. 

5. Install the SD Card in a card reader connected to your 

computer.

6. Open the MY_DX18.xml fi le from the SD Card location. 

You can then copy and paste the serial number into your 

personal records or to the Spektrum Community website.

Locating the Transmitter AirWare Version

The transmitter AirWare version appears between PREV and 

NEXT at the bottom of the Serial Number screen. Register your 

DX18 to get AirWare updates and other news at 

community.SpektrumRC.com

IMPORTANT: AirWare fi les are specifi c to the transmitter 

serial number and you cannot transfer AirWare fi les between 

transmitters, ie., downloading an AirWare update once and 

attempting to install it on multiple transmitters.

Inactive Alarm

An alarm activates if the transmitter sees a period of inactivity 

for a certain amount of time. The alarm is helpful in reminding 

you to power off the transmitter and avoiding a situation when 

the transmitter battery completely discharges.

The Inactive Alarm options are:

• Inh (No alarm sounds)

• 5 min

• 10 min (Default)

• 30 min

• 60 min

To change the Inactive alarm time:

1. Scroll to the current alarm time and press the scroll wheel. 

2. Scroll left or right to change the alarm time. Press the scroll 

wheel to save the selection.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 21

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Calibrate

The Calibration screen stores the potentiometer endpoints for all 

proportional controls. It is mandatory to complete the calibration 

after changing the stick mode selection.

Calibrating the Transmitter

1. Carefully move the gimbal sticks in a + shape moving from 

left to right, then up and down. Press gently on the gimbals 

at the stops to achieve an accurate calibration. Return both 

gimbal sticks to the center position.

2. Move the Left and Right Side Levers to the top and bottom 

positions, then move the side levers to the center position.

IMPORTANT: Only move one side lever at a time during 

calibration.

3. Move the Knob to the full clockwise and counter-clockwise 

positions, then return the Knob to the center position.

4. Select SAVE to store the calibration.

Transfer SD Card

Import Model

To import an individual model fi le from the SD Card:

1. Save the model fi le to the SD Card.

2. Select the Model List location where you wish to import the 

new model fi le.

3. In the SD Card menu, scroll to Select Option and press the 

scroll button once. 

4. Scroll to Import Model and press the scroll button again to 

save the selection. The Select File screen appears.

5. Select the model fi le you wish to import. The Overwrite 

screen appears.

 IMPORTANT: When you select Import, the transmitter 

leaves the System Setup List. 

6. Select Import to confi rm overwriting the current model fi le. 

The transmitter activates the new model fi le and the Main 

Screen appears.

NOTICE: A Prefl ight Checklist may appear prior to the Main 

Screen if the checklist was active during the model fi le export. 

Select MAIN to exit the Prefl ight Checklist. 

See “Prefl ight Setup” for more information.

Import All Models

To import all models from the SD Card, select Import All Models, 

and then confi rm by selecting IMPORT. 

NOTICE: This function overwrites the model memories. Ensure 

that the models currently in your transmitter are saved on an 

SD card separate from the transmitter before performing this 

function.

You can import a model to any location you want. If you prefer to 

use Import All, you can use your PC to rename the SPM fi le. The 

fi rst two digits (01 to 50) are the destination model number. Your 

SD card can only contain 50 models. Save fi les to folders on the 

card then remove from the card all unused models. Files are 

selected by their position in the directory table. 

Export Model

You can use the Export Model option to export a single model 

fi le to the SD Card. 

1. Make sure the active model fi le is the one you wish to 

Export.

2. Scroll to Select Option and press the scroll button once. 

3. Scroll to Export Model and press the scroll button again to 

save the selection. The Export to SD screen appears. The 

fi rst two characters of the fi le name correspond to the Model 

List number (01, for example).

4. (Optional) If you wish to rename the model fi le before exporting it to the SD Card:

a. Scroll to “Save to:” and press the scroll wheel. The File 

Name screen appears.

b. Assign a new fi le name. The fi le name can contain up to 

25 characters including the .SPM fi le extension.

c. When you are done assigning the new fi le name, press 

the Back button to return to the Export to SD screen.

5. Select Export to save the fi le to the SD Card. When the 

export is complete, the transmitter returns to the SD Card 

Menu screen.

Export All Models

To export all models to the SD Card:

1. Select Export All Models in the SD Card Menu options. The 

Export All Models screen appears.

IMPORTANT: Export All Models will overwrite any model 

fi les that are:

a. Already saved on the SD Card and

b. You are exporting a model fi le with the same 

name. Always save model fi les to a different SD 

Card if you are not sure.

2. Select Export to overwrite fi les on the SD Card or Cancel to 

return to the SD Card Menu.

Update AirWare

IMPORTANT: The orange LED Spektrum bars fl ash and a status 

bar appears on the screen when AirWare updates are installing. 

Never power off the transmitter when AirWare updates are 

installing. Doing so may damage the system fi les.

Before installing any AirWare fi les, always Export All Models to 

an SD Card separate from the SD Card containing the AirWare 

update. The AirWare update may erase all model fi les.

For more information on AirWare updates, visit 

Community.SpektrumRC.com
22 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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FUNCTION LIST

Servo Setup 

The Servo Setup menu contains the following functions:

• Travel Adjust

• Sub-Trim

• Reverse

• Speed

• Abs. (Absolute) Travel

• Balance

Travel Adjust

Travel Adjust sets the overall travel or endpoints of the servo arm 

movement. 

To adjust travel values:

1. Scroll to the channel you wish to adjust and press the scroll 

wheel. When adjusting travel values assigned to a control 

stick:

 a. Center the control stick to adjust both directions at the 

same time.

 b. To adjust travel in one direction only, move the control 

stick in the direction you wish to adjust. Continue holding 

the control stick in the desired direction while you are 

adjusting the travel value.

2. Scroll left or right to adjust the travel value. Press the scroll 

wheel to save the selection.

Sub-Trim

Sub-Trim adjusts the servo travel center point. If X-Plus is active, 

sub-trim for X-Plus channels appears on the second screen.

CAUTION Use only small sub-trim values or you may 

cause damage to the servo.

Reverse

Use the Reverse menu to reverse the channel direction, for example, if the elevator servo moves up and it should move down.

To reverse a channel direction:

1. Scroll to Travel and press the scroll wheel. Scroll left until 

Reverse appears and press the scroll wheel again to save the 

selection.

2. Scroll to the channel you wish to reverse and press the scroll 

wheel.

CAUTION: If you reverse the Throttle channel, a 

confi rmation screen appears. Select YES to reverse the 

channel. A second screen appears, reminding you to bind your 

transmitter and receiver. Failure to re-bind the transmitter and 

receiver will result in the throttle moving to full throttle if failsafe 

activates.

CAUTION: Always perform a control test after making 

adjustments to confi rm the model responds properly. 

After adjusting servos, always rebind the transmitter and receiver 

to set the failsafe position.

Speed

The Speed menu enables you to increase the response time on 

any individual channel such as retracts.

The Speed is adjustable in the following ranges:

• Nor (No Delay) - 0.9s in 0.1 second increments

• 1s - 2s in 0.2 second increments

• 2s - 8s in 1 second increments

To adjust the Speed:

1. Scroll to the channel you wish to adjust and press the scroll 

wheel.

2. Scroll left or right to adjust the speed and press the scroll 

wheel to save the selection.

Automatically Installing AirWare Updates

To install the most recent AirWare update:

1. Download the update from Community.SpektrumRC.com and 

save it to the SD Card.

2. Power off the transmitter and install the SD Card in the 

transmitter.

3. Power on the transmitter and the update automatically 

installs in the transmitter.

Manually Installing AirWare Updates

1. Save the desired AirWare version to the SD Card.

2. Select Update Firmware in the SD Card Menu options. The 

Select File screen apepars.

3. Select the desired AirWare version from the File List. When 

updates are installing, the transmitter screen is dark. The 

orange LED Spektrum bars fl ash and the update status bar 

appears on the screen. 

NOTICE: Do not power off the transmiter when updates are 

installing. Doing so will damage the transmitter.

Select this when 

X-Plus channels are 

active
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 23

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D/R & Exponential

Dual Rates and exponentials is available on the aileron, elevator 

and rudder channels. 

To adjust the Dual Rate and Exponential:

1. Scroll to the channel and press the scroll wheel once. Scroll 

left or right to select the channel you wish to change and 

press the scroll wheel again to save the selection.

2. Scroll to dual rate and press the scroll wheel. Scroll left or 

right to change the value and press the scroll wheel again to 

save the selection.

Exponential affects control response sensitivity around center but 

has no affect on overall travel. Positive exponential decreases 

the sensitivity around the center of gimbal movement.

Differential (Air and Sail Types only)

The Differential screen enables you to increase or decrease the 

amount of differential between aileron control surface throws. 

Positive Differential values decrease the amount of “up” travel 

without affecting the “down” travel on the opposite control 

surface.

Negative Differential values decrease the amount of “down” 

travel without affecting the amount of “up” travel on the opposite 

control surface.

The Differential menu option only appears when a multi-servo 

aileron wing type is active in Aircraft Type.

To adjust the Differential:

1. Scroll to Switch and press the scroll wheel. Scroll right to 

select On (Differential is always on) or assign the differential 

to a switch position.

2. Press the scroll wheel a second time to save the selection.

3. Scroll to Diff: and press the scroll wheel once to change the 

value.

4. Press the scroll wheel again to save the selection.

Absolute (Abs.) Travel

The Abs. Travel function limits the amount of travel on a channel. Adjust the Abs. Travel value to prevent a throttle servo or 

helicopter cyclic servo from binding when a mix is applied.

Balance

Balance is available on all channels to fi ne-tune the servo 

position at up to 7 points. This is a precision curve mix that is 

normally used to prevent binding when multiple servos are used 

on a single control surface.

You can also use the Balance menu option to match throttle 

response on twin engine aircraft or level the swashplate on a 

helicopter. 
24 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Throttle Cut

The Throttle Cut menu option enables you assign a switch position 

to stop an engine or motor. Throttle Cut activates regardless of 

Flight Mode.

When you activate Throttle Cut, the throttle channel moves to the 

pre-programmed position (normally Off). 

You may need to use a negative value to move the Throttle channel to the off position.

CAUTION: Always test the model after making adjustments 

to make sure the model responds to controls as desired.

Throttle Curve 

You can use the Throttle Curve menu option to optimize the 

throttle response. A maximum of 7 points are available on the 

throttle curve. 

To add points to a Throttle Curve:

1. Move the throttle stick to the position where you wish to add 

the new point.

2. Scroll to Add Pt. and press the scroll wheel to add the point.

To remove points from a Throttle Curve: 

1. Move the Throttle stick until the cursor is near the point you 

wish to remove.

2. Scroll to Remove Pt. and press the scroll wheel once to 

remove the point.

If you program multiple throttle curves and you wish to edit one 

of the curves, that curve must be active in the Throttle Curve 

screen before you can make any changes. 

V-Tail Differential (Air and Sail Types only)

The V-Tail Differential screen enables you to increase or 

decrease the amount of differential between control surface 

throws. 

Positive Differential values decrease the amount of “up” travel 

without affecting the “down” travel on the opposite control 

surface.

Negative Differential values decrease the amount of “down” 

travel without affecting the amount of “up” travel on the opposite 

control surface.

The V-Tail Differential menu option only appears when V-Tail A or 

V-Tail B is active in Aircraft Type.

To adjust the V-Tail Differential:

1. Scroll to Switch and press the scroll wheel. Scroll right to 

select On (Differential is always on) or assign the differential 

to a switch position.

2. Press the scroll wheel a second time to save the selection.

3. Scroll to Diff: and press the scroll wheel once to change the 

value.

4. Press the scroll wheel again to save the selection.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 25

EN

Mixing

Mixing allows control input for a channel to affect more than one 

channel at a time. Mixing functions support: 

• Mixing a channel to another channel. 

• Mixing a channel to itself. 

• Assigning offset to a channel 

• Linking primary to secondary trim. 

These mixes are available for each model memory: 

16 programmable mixes 

Select a channel for master and slave. Inputs for the master channel control both the master and slave channels. For 

example Elevator to Flap makes elevator the master channel and 

fl ap the slave channel. 

Offset

Change the offset value to move the effective center position 

of the slave channel. Positive or negative value determines the 

direction of the offset. Offset is not available for curve mixes. 

Trim

If the master channel trim should also adjust the slave channel, 

set Trim to Act. A channel monitor on the left side of the screen 

shows how channels respond to input. To view a switch-assigned mix on the monitor, the mix switch must be in the active 

position. 

Assigning a Mix to a Switch

If you wish to assign a mix to a switch position:

1. Scroll to Switch and press the scroll wheel.

2. Scroll left or right to the switch you wish to use and press 

the scroll wheel to save the selection.

3. Scroll to the switch position where you want the mix to be 

active. 

The mix is Active when the box is fi lled and Inactive when the 

box is open. You can assign a mix to be active in multiple switch 

positions (0,1 or 2).

CAUTION: Always do a Control Test of your model 

after changing mixes. 

Combo Mixing

Combination Mixing is available to create OR mixing where you 

can assign 2 conditions and the mix activates if either condition 

occurs. You can also create AND mixing where 2 conditions 

must occur to activate the mix. 

To program Combination Mixing:

1. Activate a mix.

2. Select Combo Sw. in the Switch Selection. The Combo 

screen appears.

3. Select the desired switch and active switch position for 

Switch 1.The mix is Active when the switch position box is 

fi lled.

4. Select the Relation (AND, OR)

5. Select the desired switch and active switch position for 

Switch 2.The mix is Active when the switch position box is 

fi lled.

6. Press the BACK button to save the Combination Mix.

The Master (left side) names are inputs. For example, “Aileron” 

refers to the Aileron Stick. The Slave (right side) name is the 

name of the channel receiving the mix command when the 

Master channel moves.

Back Mixing

Back Mixing applies a mix to all related servos in a wing or tail 

type. For example, if you select 2 AIL, 2FLAP in the Aircraft Type 

screen, a mix to one aileron channel affects both aileron servos.

The mix response, however, depends on the aileron channel 

included in the mix.

A Back Mix also enables you to use fewer mixes to achieve the 

desired response, for example adding roll to a split elevator.

• Cyclic to Throttle (HELI)

• Swashplate (HELI) 

• Elevator to Flap (ACRO)

• Aileron to Rudder (ACRO)

• Rudder to Aileron/Elevator 

(ACRO). 

• Aileron>Rudder (SAIL) 

• Aileron>Flap (SAIL)

• Elevator>Flap (SAIL)

• Flap>Elevator (SAIL)
26 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Sequencer

The Sequencer menu option provides this-then-that mixing with 

a time delay. Five different sequences (S1 through S5) are available to control 2 functions each (A and B), in 2 timing directions 

(forward or reverse). Sequences appear throughout function 

screens as assignable switches. 

CAUTION: Always review the action of a sequence on 

the Monitor or X-Plus Monitor screen BEFORE operating 

the model to ensure controls act as desired. Failure to do so 

could cause a crash, resulting in property damage and or injury. 

You can program multiple functions to sequentially activate 

in response to an assigned switch. For example, an assigned 

Gear switch can open gear doors, lower the gear, then close the 

doors. In reverse, gear doors open, the gear retracts and the 

gear doors close. 

You can assign each Sequencer function to a switch in most 

Function screens such as Flight Mode, Dual Rate, Mixing, 

Throttle Curve, Pitch Curve, etc. 

You can assign several functions to a sequence to decrease 

the number of controls you need to touch during complex fl ight 

transitions, for example, applying your assigned dual rates and 

exponential when the landing gear deploys and the fl ight mode 

changes. 

If you select an S-Number-A sequence, for example, S3A, the 

sequence operates as a timed 5-position switch. An S-NumberB sequence operates as a timed 3-position switch. The 5 

positions correspond to the sequencer values shown on the 

time delay graph in the second Sequencer screen. In a function 

screen, highlight each point (0-4) and select the switch position 

desired for a function to be active. 

When S1B (or another sequence-number-B) is selected as 

a switch in a function, the sequence will operate as a timed 

3-position switch. The 3 positions act as ‘kick points’ of the 

movement at fi xed percentages (equal thirds) of the sequencer 

output. In a function screen, highlight each point (0-2) and select 

the switch position desired for a function to be active. 

Sequencer Set Up

1. In the fi rst Sequencer screen, select 1 of the 5 available 

sequences.

2. In the second Sequencer screen, assign a switch to the 

sequence. We recommend using a 2-position switch. 

Tip: If you need to use a 3-position switch, you must assign 

one direction to two adjacent switch positions, for example, 

0 and 1. Assign the opposite direction to the third switch 

position.

3. Assign the timing for the Forward and Reverse directions as 

desired. There is no delay when you use the Nor option. You 

may also select a delay time between 0 and 30 seconds.

4. Assign names for each sequencer function, as desired. 

5. Select either Step (S) or Proportional (P) for the Sequencer 

output.Step: The sequence only changes at kick points. 

Otherwise, there is a delay in the sequence until it reaches 

the next kick point.

Proportional: The sequence movement is proportional 

between kick points. The sequence maintains rate and 

direction until it reaches the next kick point.

6. Adjust the Sequencer motion percentages in the third screen.

For example, you may move points 1, 2 and 3 closer to the 

beginning of the sequence so the motion occurs earlier. This 

results in a delay between point 3 and point 4 at the end of the 

sequence.

Testing the Sequence

The Sequencer function determines the response for channels 

included in the sequence. 

Refer to the Monitor screen to see how respective channels 

interact in the Sequencer.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 27

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Range Test

The Range Test function reduces the power output. This allows 

for a range test to confi rm the RF link is operating correctly. 

Perform a range check at the beginning of each fl ying session 

to confi rm system operation.

To Access the Range Test screen

With the transmitter on and the main or telemetry screen 

displayed, press the roller. The Function list displays.

Rotate the roller to highlight Range Test then press the roller to 

access the Range Test function.

With the Range Test screen displayed, push and hold the trainer 

button. The screen displays Reduced Power. In this mode the RF 

output is reduced allowing for an operational range test of your 

system.

If you let go of the trainer button, the transmitter will go back to 

Full Power.

Range Testing the DX18

1. With the model restrained on the ground, stand 30 paces 

(approx. 90 feet/28 meters) away from the model.

2. Face the model with the transmitter in your normal fl ying 

position and place the transmitter into Range Test mode 

(see above) and push the trainer button reducing the power 

output.

3. Operate the controls. You should have total control of your 

model with the transmitter in Range Test mode.

4. If control issues occur contact the appropriate Horizon 

Product Support offi ce for assistance.

5. If performing a range test while a telemetry module is active, the display will show fl ight log data.

Timer

The DX18 Timer function allows you to program a countdown 

timer or stop watch (count up timer) to display on the main

screen. An alarm sounds when the programmed time is 

reached. You can program the timer to start using the assigned 

switch position or automatically when throttle is raised above a 

programmed position. Two independent timers can be set up as 

desired per model. An internal timer that shows run time for a 

specifi c model displays on the Main Screen. A total system timer 

is also available.

Telemetry

Telemetry is in both the system setup and the function list so you 

can access the telemetry functions from either list.

You must power off the receiver and transmitter, then power 

them both on to reset the telemetry data. You can reset min/max 

values by pressing the CLEAR button

NEVER change Telemetry settings when the aircraft is powered 

on. There is a brief interruption in RF output when exiting the 

Telemetry screen.
28 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Monitor

The Monitor screen displays the servo positions for each channel graphically and numerically. This is useful to verify programming functions, trim settings, mix directions, etc. The numeric 

value is directly relative to the travel adjust and mix values (e.g., 

100% travel adjust equals 100% value in the Monitor).

X-Plus Monitor

Use of the X-Plus Monitor requires X-Plus to be active. The 

X-Plus Monitor screen displays the output position for each 

X-Plus channel graphically and numerically. This is useful to 

verify programming functions, trim settings, mix directions, etc. 

The numeric value is directly relative to the travel adjust and 

mix values (e.g., 100% travel adjust equals 100% value in the 

X-Plus Monitor). The X-Plus Monitor shows the additional channels and requires servos which can be connected to the optional 

X-Plus module and an X-Plus-capable receiver. X+1 and X+2 

channels also serve as the monitor for channels 11 and 12 on a 

12 channel receiver.

CAUTION: Do NOT connect throttle or any primary 

control sur face to the X-Plus Module. 
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 29

EN

Aircraft Type

Use the Aircraft Type Screen to select wing and tail types to 

match your airplane model. Diagrams and setup names show on 

the transmitter screen to show the available setups.

Refer to community.spektrumrc.com for more information about 

new DX18 AirWare updates to support these options.

Wing

Normal 

Flaperon*

Dual Aileron*

Flaperon*

1 Aileron 1 Flap*

1 Aileron 2 Flaps*

2 Ailerons 1 Flap*

2 Ailerons 2 Flaps*

Elevon A*

Elevon B*

4 Aileron*

Tail 

Normal

V-Tail A**

V-Tail B**

Dual Elevator

Dual Rudder

Dual Rudder/Elevator

NEXT screen

Gyro 1#

Gyro 2#

*Selection of multiple ailerons activates the Differential menu option.

**Selection of either of these activates the V-Tail Differential menu option

# Activates the Gyro menu option in the Function List.

Select wing and tail types before doing other programming. 

CHAPTER 2 ACRO (Airplane)

NOTICE: Refer to your airplane manual for recommended control throws.

CAUTION: Always do a Control Test of your model with the transmitter after programming to make 

sure your model responds as desired. 

Elevon Servo Control

The possible servo reversing options for a delta wing model are:

Tip: If you test all servo reversing options and the control 

surfaces do not move in the correct direction, change the Elevon 

wing type in the System Setup list from Elevon-A to Elevon-B.

Recommended Servo Connections

Dual Aileron Wing 

Type Connection

V-Tail Type 

Connection

C D

A B

Elevon 

Wing Type 

Connection

E F

A AUX1 servo port (left aileron)

B AILE servo port (right aileron)

C ELEV servo port (left V-tail)

D RUDD servo port (right V-tail)

E AILE servo port (left aileron)

F ELEV servo port (right aileron)

Aileron Elevator

Normal Reverse

Normal Normal

Reverse Reverse

Reverse Normal

Up

Elevator

Down

Elevator

Left

Aileron

Right

Aileron

Right

Rudder

Left

Rudder
30 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Flap System

The Flap System menu option enables fl ap programming as well 

as elevator mixing. You must select a fl ap-enabled wing type in 

Aircraft Type or the Flap System menu does not appear.

To activate the Flap System:

1. Access the System Setup list and select Aircraft Type.

2. Select a fl ap-enabled wing type and exit the System Setup 

list.

3. Access the Function List from the Main Screen and select 

Flap System.

4. Select Inhibit and scroll to the switch or lever you wish to use 

to control the fl ap channel.

5. Assign the Flap travel values and any desired Elevator mixing. 

6. Select a Flap speed, if desired. Norm (default) does not have 

a delay. Flap speed options range from 0.1s to 30 seconds. 

ACRO Mixing

Rudder to Aileron/Elevator

Rudder to Aileron/Elevator mixing corrects coupling in knife edge 

fl ight.

• Add Elevator mixing if the aircraft pitches toward the landing 

gear or canopy

• Add Aileron mixing if the aircraft rolls in knife edge fl ight.

Aileron to Rudder

Use Aileron to Rudder mixing to overcome adverse yaw 

characteristics with certain types of aircraft such as high-wing 

aircraft.

Elevator to Flap

Elevator to Flap mixing enables Flap movement when the 

Elevator stick moves. Use Elevator to Flap mixing to add the 

spoileron function to 3D aerobatic aircraft. 

Acro Gyro Function 

The Gyro menu option enables you to create up to 7 gyro gain 

points on a maximum of 4 curves. Gyro gain curves also provide 

fl exibility in reducing gyro gain as the control stick moves farther 

away from the center.

To program a Gyro curve:

1. Access the Gyro 1 or Gyro 2 menu option from the Function 

list.

2. Assign either Aircraft or Heli to the Gyro Type and select 

NEXT.

3. Scroll to Inh > Inh. 

a. Select the fi rst Inh and assign the input channel for the 

Gyro. For example, if the gyro is installed to assist on 

the ailerons, select Ail.

b. Select the second Inh and assign the output channel for 

the Gyro, for example, the Gear channel.

4. Select the Curve you wish to edit. 

5. Add the desired gyro gain values to the points on the curve.

6. Assign the switch positions to activate the gyro curve. The 

curve is active when the box is solid. 

To access the Gyro screen

1. In the System Setup List Highlight Aircraft Type

2. In the Aircraft Type Screen, select NEXT at the bottom right 

of the screen. This will access the Aircraft Options screen. 

Activate the desired Gyro function(s). When the gyro function 

is active the Gyro function appears in the Function List.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 31

EN

Pitch Curve

This function supports adjustment of collective pitch in 5 fl ight 

modes. 

To adjust the Pitch Curve:

1. Select the Pitch Curve you wish to edit (N, 1 or 2).

2. Scroll right to select the points on the curve and edit the 

respective values.

3. Press the BACK button to save the Pitch Curves and return to 

the Function List.

Swashplate

The Swashplate menu option enables you to adjust the following:

• Swashplate Mix

• Exponential

• E-Ring

• Elevator Compensation 

Use positive or negative Swashplate mix values as needed for 

correct direction response of the helicopter.

Before making adjustments to the Swashplate mix, make sure 

the throttle/collective pitch input moves the entire swashplate 

up or down. If the servos are not moving in the same direction, 

reverse them as necessary in the Servo Setup menu option.

When the entire swashplate moves up or down:

1. Adjust the mix value for the Aileron and Elevator channels. If 

the servos do not move in the correct direction, change the 

direction of the mix, for example, a positive value instead of 

a negative value.

2. Adjust the mix value for the Pitch. If the swashplate does not 

move in the correct direction, change the direction of the 

value (negative instead of positive). 

Always enable Expo when using a standard rotating-arm servo.

The Expo delivers linear movement of the swashplate from a 

standard rotary servo. When Expo is inhibited, the arm on a 

rotary servo moves on a curved path, with decreased swashplate 

movement at the extremes of the servo arm travel. 

NOTICE: Do not enable Expo when using a linear servo.

Electronic E-Ring

This feature prevents overdriving servos by limiting servo travel if 

the sum of your cyclic and pitch inputs exceed servo limits.

Swash Type

The Swash Type menu option assigns the swash type for your 

particular helicopter model. 

Select the Swash Type before completing any programming in 

the Function List. The Swash Type will affect menu options in the 

Function List.

Collective Type

The collective type is used to turn on “Pull” collective for 

reversed collective. Available settings are Normal and Reverse. 

The Collective Type allows the throttle/pitch stick to operate in 

reverse and ensures trims, curves and all other functions that 

are to work in reverse funtion properly.

CHAPTER 3 HELI (Helicopter)

NOTICE: Refer to your helicopter, gyro and governor manuals for programming recommendations.

CAUTION: Always do a Control Test of your model with the transmitter after programming changes 

to make sure your model responds as desired. 
32 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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Gyro

The Gyro menu option enables you to assign a gyro gain value 

to an independent switch or a Flight Mode. Assign the receiver 

channel connected to the gyro, then assign the switch for 

gyro options. You can also assign values to available switch 

positions (from 1 to 5 rates are available, depending on the 

switch assigned). Make sure the gyro operates correctly and 

compensates in the correct direction. 

Governor

The Governor function adjusts the engine RPM. You can program 

values for each switch position or fl ight mode. RPM values can 

be programmed in 0.5% steps. 

Programming the Governor Function 

1. Access the Governor menu option.

2. Program the RPM values by rotating the scroll wheel to the 

desired value. 

3. Press the scroll wheel and rotate it to the desired value. 

Press the scroll wheel again to save the value.

NOTICE: The value in the display is the corrected value. 

0% is 1.5ms or OFF for most governors. Repeat this for all 

governor settings. 

4. Assign the output channel for the Governor. The Governor 

and the Gyro must be on different channels. We recommend 

using AUX2 for the Governor output channel.

5. Select a switch to control the Governor.

6. Press the BACK button to save the selections and return to 

the Function List. 

Tail Curve 

The Tail Curve function mixes tail rotor input with the throttle/

collective function to counter torque from the main rotor blades 

when using a non-heading hold (tail lock) gyro or when using 

rate mode on a gyro. See Pitch Curve for more information on 

programming curves.

Mixing 

Cyclic to Throttle

Cyclic-to-throttle mix prevents rpm loss when aileron, elevator or 

rudder inputs are given. This mix advances the throttle position 

with cyclic or rudder control to maintain rpm. At full throttle, 

Cyclic-to-Throttle mixing prevents the throttle from overdriving 

the servo.

IMPORTANT: Do not use Cyclic to throttle mix when using a 

governor.

To verify that the Cyclic to Throttle mix is working properly and in 

the correct direction, move the fl ight mode switch to one of the 

active positions. Move the programmed cyclic or rudder channel 

noting the throttle position. The throttle position should increase.

If the throttle decreases then the opposite value (positive vs. 

negative) is needed.

Swashplate

The Swashplate Mix typically corrects swashplate timing issues 

by mixing Aileron to Elevator and Elevator to Aileron. When 

adjusted correctly, the Swashplate causes the helicopter to roll 

and pitch accurately with minimal interaction.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 33

EN

Sailplane Type

Use the Sailplane Type Screen to select wing and tail types to 

match your sailplane model. Diagrams and setup names show 

on the transmitter screen to show the available setups. 

Refer to community.spektrumrc.com for more information about 

new DX18 AirWare updates to support these options.

Wing 

 1 Servo

 2 Aileron*

 2 Aileron 1 Flap*

 2 Aileron 2 Flap*

 4 Aileron 2 Flap*

Tail 

 Normal

 V-Tail A**

 V-Tail B**

Motor 

 Inhibit

 Assign to a Switch (optional)

*Selection of multiple ailerons activates the Differential menu option.

**Selection of either of these activates the V-Tail Differential menu option

CHAPTER 4 SAIL (Sailplane)

NOTICE: Refer to your sailplane manual for recommended control throws.

CAUTION: Always do a Control Test of your model with the transmitter after programming to 

make sure your model responds as desired. 

Camber Preset

Camber Preset is only available when 2 or 4 aileron wing type is 

selected in Sailplane Type. The Camber Preset function enables 

you to program the ailerons, fl aps, wing tips and elevator for a 

specifi c position in each Flight Mode.

If fl ight modes are not active, only one preset position is 

available and it is always active.

The Camber Preset Speed enables the control surfaces to 

transition over a period of time, up to 30 seconds, when you 

change fl ight modes.

Move the fl ight mode switch to the desired position to change 

the Camber Preset values. 

 

Camber System

Camber System is only available when 2 or 4 aileron wing 

type is selected in Sailplane Type. The Camber System allows 

in-fl ight camber adjustment and is also used as the braking 

system, often referred to as Crow or Butterfl y. The Camber 

System enables you to assign the Camber System to a different 

switch in each fl ight mode. 
34 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

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SAIL Mixing

For each of these mixes, you can program each fl ight mode with 

different mix values or at 0% if no mix is desired for that specifi c 

fl ight mode. Programming values include independent control of 

the direction and amount a slave surface moves in relationship 

to the master surface.

Aileron to Rudder

The Aileron to Rudder mix is a commonly used for coordinated 

turns. When active, as aileron is applied the rudder moves in 

the same direction as the turn (right aileron input results in 

right rudder output). If you assign the fl ight mode to a switch, a 

Sub Switch option allows you to assign an additional switch to 

activate up to 3 Aileron to Rudder mixes for that fl ight mode.

Aileron to Flap

The Aileron to Flap mix allows the entire trailing edge of the wing 

(aileron and fl ap) to operate as ailerons. When the mix is active, 

the fl aps move with the ailerons. 

Elevator to Flap

Elevator to Flap mix creates additional lift, allowing a tighter turn. 

The entire trailing edge of the wing (aileron and fl ap) operate 

as fl aps (camber increase) when you apply elevator. An offset is 

provided which is typically used for Snap Flaps. With Snap Flap, 

no Elevator to Flap mix occurs until the offset value is reached. 

Typically this offset is at 70% up elevator so that beyond 70% 

the down fl ap mix comes in, providing additional lift for more 

aggressive turning (for tight thermals or racing turns). 

Flap to Elevator

Flap to Elevator mix prevents pitch up tendency that occurs 

when you apply Crow or Butterfl y. This mix is typically used only 

with the Camber System. The Flap to Elevator mix operates as 

a curve, so that the elevator moves down the most during the 

fi rst 20% of fl ap deployment, decreases over the next 40% then 

remains the same from 60 to 100% of fl ap travel.

For sailplanes with ailerons/tips/fl aps, make sure an appropriate 

Sailplane Type is selected so that tips appear in the transmitter 

as RAIL and LAIL. Decrease or increase travel on the tip ailerons 

by creating an AIL > RAIL mix. 

AR9020 Receiver Specifi cations: 

Weight: 0.42 oz (11.9 g) 

Voltage Range: 3.5V-9.6V 

Length: 1.61 in (41mm) 

Width: 0.91 in (23mm) 

Height: 0.79 in (20mm) 

Range: Full 

Number Of Channels: 9

Band: 2.4GHz 

Model Type: Airplane/Heli/Sailplane

Telemetry: Yes 

Features: 

• 9-channel full range receiver 

• Patented MultiLinkTM receiver technology 

• Includes one internal and two remote receiver 

• An optional third remote receiver can also be used 

(SPM9645) 

• SmartSafeTM failsafe system 

• QuickConnectTM 

• Flight Log and Telemetry compatible (optional) 

• 2048 Resolution 

• High-speed 11ms operation when used with 

capable transmitters

Receiver Installation

For optimum RF link performance, mount the main receiver 

and remote antennas in an orientation that allows for the best 

possible signal reception when the aircraft is in all possible attitudes and positions. Where supplied with the transmitter, install 

the primary receiver in your model. Put the primary receiver 

in protective foam and install the receiver in the model using 

rubber bands or hook-and-loop straps. Use thick double-sided 

foam tape to install the primary receiver in electric airplanes or 

helicopters. 

Mount each remote receiver at least 2 inches (51mm) away 

from the primary receiver, primary antenna and each other using 

double-sided foam tape. Orient the antennas perpendicular 

to each other; typically one vertical and one horizontal (see 

manufacturer’s receiver installation instructions). This gives 

tremendous improvements in path diversity as each receiver can 

“see” a different RF environment. This is key to maintaining a 

solid RF link, especially in aircraft that have substantial conductive materials (e.g., larger gas engines, carbon fi ber, pipes, etc.), 

which can weaken or block the signal. 

In airplanes, we recommend mounting the primary receiver 

in the center of the fuselage on the servo tray and the remote 

receivers on the side of the fuselage or in the turtle deck (space 

behind the canopy and in front of the vertical stabilizer).

In helicopters, install receivers in the radio tray, where there is 

usually suffi cient room for receiver separation. Where there is 

not suffi cient room, install a receiver on an external receiver 

mount made of clear plastic.

CHAPTER 5 RECEIVER INSTALLATION AND POWER SYSTEM REQUIREMENTS
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 35

EN

NOTICE: The DSMX DX18 is compatible with all current Spektrum DSM2 and DSMX aircraft receivers, but NOT compatible 

with the original DSM AR6000 receiver.

Power System Requirements

Set up and operate a model so power to the receiver is NEVER 

interrupted while fl ying. This is especially critical on giant-scale 

models that use several high-torque or high-current servos. 

Power systems unable to provide minimum receiver voltage 

in fl ight are the number-one cause of in-fl ight failures. Some 

components that cause a receiver to have too little power supply 

include: 

• Receiver battery 

(number of cells, capacity, cell type, state of charge)

• Switch harness

• Battery leads

• Regulator (where used), 

• Power bus (where used)

A Spektrum receiver’s minimum operational voltage is 3.5 volts. 

This battery charge capacity compensates for discharge during 

fl ight or for fl ight loads larger than ground test loads.

CAUTION: We recommend that you DO NOT fl y a model 

with battery charges at less than 5.3-volts.

Recommended Power System Guidelines

1. When setting up large or complex aircraft with multiple hightorque servos, use a current and voltmeter (HAN172). Plug 

the voltmeter in an open channel port in the receiver, and 

with the system on, load the control surfaces on your aircraft 

by applying pressure with your hand. Monitor the current as 

you load control surfaces. The voltage should remain above 

4.8 volts even when all servos are heavily loaded.

2. With the current meter inline with the receiver battery lead, 

load control surfaces while monitoring the current. The 

maximum continuous recommended current for a single 

heavy-duty servo/battery lead is 3 amps. Short-duration current spikes of up to 5 amps are acceptable. If your system 

draws more than these currents, you need to use multiple 

packs of the same capacity with multiple switches and 

multiple leads plugged into the receiver.

3. If using a regulator, perform tests for a 5-minute period. A 

regulator may provide adequate short-term power, but this 

tests its ability to maintain voltage at signifi cant power levels 

over time.

4. For really large aircraft or complex models, multiple battery 

packs with multiple switch harnesses are necessary. No 

matter what power systems you choose, always carry out 

test #1. Make sure the receiver is constantly provided with 

4.8 volts or more under all conditions.

CAUTION: When charging any brand of NiMH battery 

pack, make sure the battery is fully charged. Due to the 

nature of peak charges and variations in charging rates, heat 

development, and cell types–the capacity reading of a battery 

charged on a fast peak charger may only reach 80% of its 

nominal value. Use a charger that displays total charge capacity. 

Note the number of mAh put into a discharged pack to verify the 

charge is at full capacity.

Mode Conversion

You can perform mode changes in the System Settings screen. 

However, if you desire to change modes between 1 and 2 or 

between 3 and 4, please contact Horizon Hobby for assistance 

due to requirements for changing gimbals.

Adjust Stick Tension 

Adjust stick tension using the screws on the stick gimbals 

through holes in the back of the transmitter. 

1. Remove rubber plugs from holes marked with a vertical 

arrow or a horizontal arrow. 

2. Turn the screws in these holes a small amount using a small 

Phillips screwdriver to adjust tension on the vertical and 

horizontal gimbals. 

NOTICE: Always do a test of stick tension while turning these 

screws to ensure stick tension is not too loose or too tight. 

Tightening a screw too much can damage a spring. Loosening a 

screw too much can let a spring fall off and cause short-circuit 

in the transmitter.

CAUTION: Always power off the transmitter, disconnect 

and remove the battery before adjusting stick tension or 

friction straps. Not doing so could result in property damage or 

injury.

Control Stick Length Adjustment 

1. Adjust control stick length using a 2mm Allen wrench. 

2. Turn the setscrew in the stick counterclockwise to loosen it. 

Make the stick shorter by turning it clockwise or longer by 

turn ing it counterclockwise. 

3. After adjustment of stick length, tighten the setscrew.

CHAPTER 6 PHYSICAL TRANSMITTER ADJUSTMENTS
36 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

Throttle Ratchet Strip Installation

The transmitter is manufactured with a smooth friction strip and 

the included optional ratchet strip may be installed if desired. 

CAUTION: Always power off the transmitter, disconnect 

and remove the battery before opening the transmitter 

case. Not doing so could result in property damage or injury. 

1. Remove the battery door and disconnect the battery from 

your transmitter. 

2. Carefully pull up the top of the left and right rear hand grips 

on the back of the transmitter to expose the 2 case screws. 

Tip: Only the top portion of the grip needs to be pulled back, 

the entire grip does not need to be removed to access the 

case screws.

3. Carefully remove and keep 4 screws from the back of the 

transmitter (2 in lower corners and 2 under the back hand 

grips). 

4. Carefully open the transmitter case so no wires are 

stretched or pulled. 

5. Remove and keep 2 screws from the installed throttle 

ratchet strip. 

6. Do not remove grease from plastic part under the strip.

7. Attach the strip to the gimbal using the 2 screws. 

8. Tighten the spring tension screw to get desired stick tension. 

CAUTION: Make sure no wires or components are 

pinched or damaged while installing the back cover.

9. Carefully close the transmitter case using the 4 screws and 

re-install the hand grips. 

10. Connect the battery to your transmitter.

Adjust Throttle Friction Straps

• Pull up the top of the rear grip on the back of the transmitter 

to adjust the friction strip on the throttle gimbal. Only the 

top of the grip must be pulled up to access the adjustment 

screw, the entire grip does not need to be removed. 

• Use a small Phillips screwdriver to tighten or loosen the 

screw for friction strip. 

• Reinstall the top of the rear grip after completing the 

adjustment as desired. 

NOTICE: Always do a test of stick tension while turning these 

screws to ensure stick tension is not too loose or too tight. 

Tightening a screw too much can damage a spring. Loosening a 

screw too much can let a spring fall off and cause short-circuit 

in the transmitter. 

Function

1 Throttle friction strip tension 

screws

2 Gimbal spring covers

3 Friction straps access screws

(Throttle Ratchet Strip installation)

3

1 2
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 37

EN

2.4GHz TROUBLESHOOTING GUIDE

Problem Possible Cause Solution

Aircraft will not Bind 

(during binding) to 

transmitter

Transmitter too near aircraft during binding process Move powered transmitter a few feet from aircraft, 

disconnect and reconnect fl ight battery to aircraft

Aircraft or transmitter is too close to large metal object Move the aircraft or transmitter away from the large metal 

object

The bind plug is not installed correctly in the bind port Install bind plug in bind port and bind the aircraft to the 

transmitter

Flight battery/Transmitter battery charge is too low Replace/recharge batteries

Aircraft will not link 

(after binding) to 

transmitter

Transmitter too near aircraft during linking process Move powered transmitter a few feet from aircraft, 

disconnect and reconnect fl ight battery to aircraft

Aircraft or transmitter is too close to large metal object Move the aircraft or transmitter away from the large metal 

object

Bind plug left installed in bind port Rebind transmitter to the aircraft and remove the bind plug 

before cycling power

Aircraft bound to different model memory 

(ModelMatchTM radios only) Select correct model memory on transmitter

Flight battery/Transmitter battery charge is too low Replace/recharge batteries 

Transmitter may have been bound using different DSM 

protocol Bind aircraft to transmitter

The receiver goes 

into failsafe mode a 

short distance away 

from the transmitter

Check the receiver antenna to be sure it is not cut or 

damaged Replace or contact Horizon Product Support

Main and remote receivers too near each other Install main and remote receivers at least 2 inches (51mm) 

apart and perpendicular to each other

Receiver quits 

responding during 

operation

Low battery voltage Completely recharge fl ight battery

Loose or damaged wires or connectors between 

battery and receiver

Do a check of the wires and connection between battery and 

receiver. Repair or replace wires and/or connectors

Receiver loses its 

bind

Transmitter stand or tray could be pressing the bind 

button

If stand is pressing bind button, remove from stand and 

rebind

Bind button pressed before transmitter powered on Rebind by performing binding instructions

Receiver slowly 

blinking at landing 

(DSM2 Only)

Loss of power to the receiver during flight Check battery voltage

System powered on and connected then receiver powered off without powering off transmitter Power off transmitter when receiver is powered off

Flight log registers 

undesirable number 

of fades, losses or 

holds or aircraft 

responds irregularly 

to controls 

Poor signal reception Reposition remote receivers for improved RF signal path 

diversity

Electronic feedback Check for and stop feedback from servos or motor systems 

to the ESC or receiver

Low power

Check aircraft power draw and increase battery power or 

decrease power demand by installed systems Ensure all 

aircraft batteries are fully charged. nsure the installed BEC 

for an electric aircraft is adequate for the power demand

PARTS LIST

Number Description

SPMB2600LPTX 2600 mAh Tx Battery: DX18

SPMA3070 Battery Door: DX18

SPMA3071 Back Grips (Left/Right)

SPMA3072 Side Grips (Left/Right)

SPMA3073 Rubber Plugs: DX18

SPMA3074 Replacement Antenna: DX18

SPM9551 International 12V Transmitter AC Adapter

Number Description

SPM6708 Spektrum Single Stand Up Transmitter Case

SPM6709 Spektrum Single Stand Up Transmitter Case 

Foam

SPM6803 Male/Female Universal Bind Plug

SPM9540 Spektrum Flight Log

HAN172 Digital Servo and Receiver Current Meter: 

Hangar 9

SPM6805 Trainer Cord
38 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

AMA NATIONAL MODEL AIRCRAFT SAFETY CODE

Effective January 1, 2011

A. GENERAL: A model aircraft is a non-human-carrying aircraft 

capable of sustained fl ight in the atmosphere. It may not exceed 

limitations of this code and is intended exclusively for sport, 

recreation and/or competition. All model fl ights must be conducted 

in accordance with this safety code and any additional rules specifi c 

to the fl ying site.

1. Model aircraft will not be fl own:

(a) In a careless or reckless manner.

(b) At a location where model aircraft activities are prohibited.

2. Model aircraft pilots will:

(a) Yield the right of way to all man carrying aircraft.

(b) See and avoid all aircraft and a spotter must be used 

when appropriate. (AMA Document #540-D-See and Avoid 

Guidance.)

(c) Not fl y higher than approximately 400 feet above ground 

level within three (3) miles of an airport, without notifying 

the airport operator.

(d) Not interfere with operations and traffi c patterns at any 

airport, heliport or seaplane base except where there is a 

mixed use agreement.

(e) Not exceed a takeoff weight, including fuel, of 55 pounds 

unless in compliance with the AMA Large Model Aircraft 

program. (AMA Document 520-A)

(f) Ensure the aircraft is identifi ed with the name and address 

or AMA number of the owner on the inside or affi xed to the 

outside of the model aircraft. (This does not apply to model 

aircraft fl own indoors).

(g) Not operate aircraft with metal-blade propellers or with 

gaseous boosts except for helicopters operated under the 

provisions of AMA Document #555.

(h) Not operate model aircraft while under the infl uence of 

alcohol or while using any drug which could adversely affect 

the pilot’s ability to safely control the model.

(i) Not operate model aircraft carrying pyrotechnic devices 

which explode or burn, or any device which propels a projectile or drops any object that creates a hazard to persons 

or property.

Exceptions:

• Free Flight fuses or devices that burn producing 

smoke and are securely attached to the model 

aircraft during fl ight.

• Rocket motors (using solid propellant) up to a 

G-series size may be used provided they remain 

attached to the model during fl ight. Model rockets 

may be fl own in accordance with the National Model 

Rocketry Safety Code but may not be launched from 

model aircraft.

• Offi cially designated AMA Air Show Teams (AST) are 

authorized to use devices and practices as defi ned 

within the Team AMA Program Document (AMA 

Document #718).

(j) Not operate a turbine-powered aircraft, unless in compliance 

with the AMA turbine regulations. (AMA Document #510-A).

3. Model aircraft will not be fl own in AMA sanctioned events, air shows 

or model demonstrations unless:

(a) The aircraft, control system and pilot skills have successfully 

demonstrated all maneuvers intended or anticipated prior to 

the specifi c event.

(b) An inexperienced pilot is assisted by an experienced pilot.

4. When and where required by rule, helmets must be properly worn 

and fastened. They must be OSHA, DOT, ANSI, SNELL or NOCSAE 

approved or comply with comparable standards.

B. RADIO CONTROL (RC)

1. All pilots shall avoid fl ying directly over unprotected people, vessels, 

vehicles or structures and shall avoid endangerment of life and 

property of others.

2. A successful radio equipment ground-range check in accordance 

with manufacturer’s recommendations will be completed before the 

fi rst fl ight of a new or repaired model aircraft.

3. At all fl ying sites a safety line(s) must be established in front of which 

all fl ying takes place (AMA Document #706-Recommended Field 

Layout):

(a) Only personnel associated with fl ying the model aircraft are 

allowed at or in front of the safety line.

(b) At air shows or demonstrations, a straight safety line must be 

established.

(c) An area away from the safety line must be maintained for 

spectators.

(d) Intentional fl ying behind the safety line is prohibited.

4. RC model aircraft must use the radio-control frequencies currently 

allowed by the Federal Communications Commission (FCC). Only 

individuals properly licensed by the FCC are authorized to operate 

equipment on Amateur Band frequencies.

5. RC model aircraft will not operate within three (3) miles of any 

pre-existing fl ying site without a frequency-management agreement 

(AMA Documents #922-Testing for RF Interference; #923- Frequency Management Agreement)

6. With the exception of events fl own under offi cial AMA Competition 

Regulations, excluding takeoff and landing, no powered model may 

be fl own outdoors closer than 25 feet to any individual, except for 

the pilot and the pilot’s helper(s) located at the fl ight line.

7. Under no circumstances may a pilot or other person touch a model 

aircraft in fl ight while it is still under power, except to divert it from 

striking an individual. This does not apply to model aircraft fl own 

indoors.

8. RC night fl ying requires a lighting system providing the pilot with a 

clear view of the model’s attitude and orientation at all times.

9. The pilot of a RC model aircraft shall:

(a) Maintain control during the entire fl ight, maintaining visual 

contact without enhancement other than by corrective lenses 

prescribed for the pilot.

(b) Fly using the assistance of a camera or First-Person View 

(FPV) only in accordance with the procedures outlined in AMA 

Document #550.

Please see your local or regional modeling association’s guidelines 

for proper, safe operation of your model aircraft.
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 39

EN

This device complies with part 15 of the FCC rules. Operation 

is subject to the following two conditions: (1) This device may 

not cause harmful interference, and (2) this device must accept 

any interference received, including interference that may cause 

undesired operation.

CAUTION: Changes or modifi cations not expressly approved by the party responsible for compliance could void 

the user’s authority to operate the equipment.

This product contains a radio transmitter with wireless technology which has been tested and found to be compliant with 

the applicable regulations governing a radio transmitter in the 

2.400GHz to 2.4835GHz frequency range.

This product contains a radio transmitter with wireless technology which has been tested and found to be compliant with 

the applicable regulations governing a radio transmitter in the 

2.400GHz to 2.4835GHz frequency range.

ANTENNA SEPARATION DISTANCE

When operating your Spektrum transmitter, please be sure to 

maintain a separation distance of at least 5 cm between your 

body (excluding fi ngers, hands, wrists, ankles and feet) and the 

antenna to meet RF exposure safety requirements as determined 

by FCC regulations.

The following illustrations show the approximate 5 cm RF 

exposure area and typical hand placement when operating your 

Spektrum transmitter.

FCC INFORMATION

FAA INFORMATION

Prior to fl ying, contact your local or regional modeling organizations for guidance and familiarize yourself with the current local 

rules and FAA regulations governing model aviation in your 

location.

More information about model aviation can be found at

http://www.modelaircraft.org

The Federal Aviation Administration can be found online at

http://www.faa.gov
40 SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL

EN

1-YEAR LIMITED WARRANTY

What this Warranty Covers

Horizon Hobby, Inc., (Horizon) warrants to the original purchaser that the 

product purchased (the “Product”) will be free from defects in materials 

and workmanship for a period of 1 years from the date of purchase.

What is Not Covered

This warranty is not transferable and does not cover (i) cosmetic 

damage, (ii) damage due to acts of God, accident, misuse, abuse, 

negligence, commercial use, or due to improper use, installation, 

operation or maintenance, (iii) modifi cation of or to any part of the 

Product, (iv) attempted service by anyone other than a Horizon Hobby 

authorized service center, (v) Product not purchased from an authorized 

Horizon dealer, or (vi) Product not compliant with applicable technical 

regulations. 

OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES NO 

OTHER WARRANTY OR REPRESENTATION, AND HEREBY DISCLAIMS 

ANY AND ALL IMPLIED WARRANTIES, INCLUDING, WITHOUT 

LIMITATION, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, 

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE 

PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED 

THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE 

PURCHASER’S INTENDED USE. 

Purchaser’s Remedy

Horizon’s sole obligation and purchaser’s sole and exclusive remedy 

shall be that Horizon will, at its option, either (i) service, or (ii) replace, 

any Product determined by Horizon to be defective. Horizon reserves 

the right to inspect any and all Product(s) involved in a warranty 

claim. Service or replacement decisions are at the sole discretion of 

Horizon. Proof of purchase is required for all warranty claims. SERVICE 

OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE 

PURCHASER’S SOLE AND EXCLUSIVE REMEDY. 

Limitation of Liability

HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL 

OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION 

OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH 

CLAIM IS BASED IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT 

LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS 

BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Further, in 

no event shall the liability of Horizon exceed the individual price of the 

Product on which liability is asserted. As Horizon has no control over 

use, setup, fi nal assembly, modifi cation or misuse, no liability shall be 

assumed nor accepted for any resulting damage or injury. By the act of 

use, setup or assembly, the user accepts all resulting liability. If you as 

the purchaser or user are not prepared to accept the liability associated 

with the use of the Product, purchaser is advised to return the Product 

immediately in new and unused condition to the place of purchase.

Law

These terms are governed by Illinois law (without regard to confl ict of law 

principals). This warranty gives you specifi c legal rights, and you may 

also have other rights which vary from state to state. Horizon reserves 

the right to change or modify this warranty at any time without notice.

WARRANTY SERVICES

Questions, Assistance, and Services

Your local hobby store and/or place of purchase cannot provide warranty 

support or service. Once assembly, setup or use of the Product has 

been started, you must contact your local distributor or Horizon directly. 

This will enable Horizon to better answer your questions and service 

you in the event that you may need any assistance. For questions or 

assistance, please visit our website at www.horizonhobby.com, submit 

a Product Support Inquiry, or call 877.504.0233 toll free to speak to a 

Product Support representative.

Inspection or Services

If this Product needs to be inspected or serviced and is compliant in 

the country you live and use the Product in, please use the Horizon 

Online Service Request submission process found on our website or call 

Horizon to obtain a Return Merchandise Authorization (RMA) number. 

Pack the Product securely using a shipping carton. Please note that 

original boxes may be included, but are not designed to withstand the 

rigors of shipping without additional protection. Ship via a carrier that 

provides tracking and insurance for lost or damaged parcels, as Horizon 

is not responsible for merchandise until it arrives and is accepted 

at our facility. An Online Service Request is available at http://www.

horizonhobby.com/content/_service-center_render-service-center. If you 

do not have internet access, please contact Horizon Product Support to 

obtain a RMA number along with instructions for submitting your product 

for service. When calling Horizon, you will be asked to provide your 

complete name, street address, email address and phone number where 

you can be reached during business hours. When sending product into 

Horizon, please include your RMA number, a list of the included items, 

and a brief summary of the problem. A copy of your original sales 

receipt must be included for warranty consideration. Be sure your name, 

address, and RMA number are clearly written on the outside of the 

shipping carton. 

Notice: Do not ship LiPo batteries to Horizon. If you have any 

issue with a LiPo battery, please contact the appropriate Horizon 

Product Support offi ce.

Warranty Requirements 

For Warranty consideration, you must include your original sales 

receipt verifying the proof-of-purchase date. Provided warranty 

conditions have been met, your Product will be serviced or replaced free 

of charge. Service or replacement decisions are at the sole discretion of 

Horizon.

Non-Warranty Service

Should your service not be covered by warranty service will be 

completed and payment will be required without notifi cation 

or estimate of the expense unless the expense exceeds 50% 

of the retail purchase cost. By submitting the item for service you 

are agreeing to payment of the service without notifi cation. Service 

estimates are available upon request. You must include this request 

with your item submitted for service. Non-warranty service estimates 

will be billed a minimum of 1⁄2 hour of labor. In addition you will be billed 

for return freight. Horizon accepts money orders and cashier’s checks, 

as well as Visa, MasterCard, American Express, and Discover cards. By 

submitting any item to Horizon for service, you are agreeing to Horizon’s 

Terms and Conditions found on our website http://www.horizonhobby.

com/content/_service-center_render-service-center. 

NOTICE: Horizon service is limited to Product compliant in the 

country of use and ownership. If non-compliant product is 

received by Horizon for service, it will be returned unserviced at 

the sole expense of the purchaser. 
SPEKTRUM DX18 • TRANSMITTER INSTRUCTION MANUAL 41

EN

WARRANTY AND SERVICE CONTACT INFORMATION

COMPLIANCE INFORMATION FOR THE EUROPEAN UNION

Declaration of Conformity

(in accordance with ISO/IEC 17050-1)

No. HH20120501

Product(s): SPM DX18 Transmitter 

Item Number(s): SPM18000EU, SPM180001EU

Equipment class: 2

The object of declaration described above is in conformity with the 

requirements of the specifi cations listed below, following the provisions 

of the European R&TTE directive 1999/5/EC, EMC Directive 2004/108/

EC and LVD Directive 2006/95/EC:

EN 300-328 V1.7.1: 2006

EN 301 489-1 V1.7.1: 2006

EN 301 489-17 V1.3.2: 2008

EN 60950-1:2006+A12:2011

EN55022: 2010

EN55024: 2010

EN61000-3-2:2006+A1:2009+A2:2009

EN61000-3-3:2008

Signed for and on behalf of: 

Horizon Hobby, Inc.

Champaign, IL USA

May 1, 2011

Instructions for disposal of WEEE by users 

in the European Union

This product must not be disposed of with other 

waste. Instead, it is the user’s responsibility to 

dispose of their waste equipment by handing it over 

to a designated collections point for the recycling 

of waste electrical and electronic equipment. The 

separate collection and recycling of your waste 

equipment at the time of disposal will help to 

conserve natural resources and ensure that it is recycled in a 

manner that protects human health and the environment. For more 

information about where you can drop off your waste equipment 

for recycling, please contact your local city offi ce, your household 

waste disposal service or where you purchased the product.

Steven A. Hall

Executive Vice President and Chief Operating Offi cer

International Operations and Risk Management

Horizon Hobby, Inc.

Country of Purchase Horizon Hobby Address Phone Number/Email Address

United States of 

America

Horizon Service Center

(Electronics and engines) 4105 Fieldstone Rd

Champaign, Illinois, 61822 USA

877-504-0233

Online Repair Request: visit 

www.horizonhobby.com/service

Horizon Product Support

(All other products)

877-504-0233

productsupport@horizonhobby.com

United Kingdom Horizon Hobby Limited

Units 1-4 Ployters Rd

Staple Tye Harlow, Essex CM18 7NS, 

United Kingdom

+44 (0) 1279 641 097

sales@horizonhobby.co.uk

Germany Horizon Technischer 

Service

Christian-Junge-Straße 1

25337 Elmshorn, Germany

+49 (0) 4121 2655 100

service@horizonhobby.de

France Horizon Hobby SAS 11 Rue Georges Charpak

77127 Lieusaint

+33 (0) 1 60 18 34 90

infofrance@horizonhobby.com

China Horizon Hobby – China Room 506, No. 97 Changshou Rd. 

Shanghai, China 200060

+86 (021) 5180 9868

info@horizonhobby.com.cn

Country of Purchase Horizon Hobby Address Phone Number/Email Address

United States Sales 4105 Fieldstone Rd

Champaign, Illinois, 61822 USA

800-338-4639

sales@horizonhobby.com

United Kingdom Horizon Hobby Limited

Units 1-4 Ployters Rd

Staple Tye Harlow, Essex CM18 7NS

United Kingdom

+44 (0) 1279 641 097

sales@horizonhobby.co.uk

Germany Horizon Hobby GmbH Christian-Junge-Straße 1

25337 Elmshorn, Germany

+49 (0) 4121 2655 100

service@horizonhobby.de

France Horizon Hobby SAS 11 Rue Georges Charpak

77127 Lieusaint

+33 (0) 1 60 18 34 90

infofrance@horizonhobby.com

China Horizon Hobby – China Room 506, No. 97 Changshou Rd. 

Shanghai, China 200060

+86 (021) 5180 9868

info@horizonhobby.com.cn

PARTS CONTACT INFORMATION

AT BE BG CZ CY DE DK

ES FI FR GR HU IE IT

LT LU LV MT NL PL PT

RO SE SI SK UK
© 2012 Horizon Hobby, Inc.

The Spektrum trademark is used with permission of Bachmann Industries, Inc. 

DSM2, AirWare, SimpleScroll, JR, Vibe, X-Plus and Bind-N-Fly are trademarks or registered trademarks of 

Horizon Hobby, Inc. DSMX is a trademark of Horizon Hobby, Inc., registered in the US.

SD Logo is a trademark of SD-3C, LLC

US 7,391,320. Other patents pending.

www.spektrum-rc.com

Created 8/12 28994.1 SPM18000, SPM18000EU, SPM180001EU