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DX20 20 CH System w/ AR9020 Mode 2 Selectable 1-4



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DX20 20 CH System w/ AR9020 Mode 2 Selectable 1-4

Item #: SPM20000


Retail: $1,494.99*

Find a Retailer Buy Now *Avaliable at participating retailers


Key Features

  • Carbon fiber front case
  • Machined-aluminum, quad-bearing gimbals
  • Ergonomic leather side grips
  • 20 fully-proportional channels
  • 250-model memory
  • ProTrim in-flight adjustment of rates, expo, mixes and differential
  • Voice alerts
  • Wireless trainer link
  • Independent multi-engine control for airplanes
  • 11ms frame rates with capable receivers
  • Built-in telemetry with vibe or voice alerts
  • Airplane, helicopter, sailplane and multirotor programming
  • 11 airplane wing types
  • 6 airplane tail types
  • 2 canard options (1 rudder or 2 rudder) with elevon wing types
  • Active gyro trim
  • 5 airplane and heli flight modes
  • 7 swashplate types
  • Swashplate timing
  • 7-point airplane and heli throttle curve
  • 7-point heli pitch curve
  • 7-point heli tail curve
  • 5 sailplane wing types
  • 3 sailplane tail types
  • 10 sailplane flight modes
  • Multirotor flight mode setup, checklists and voice alerts
  • Throttle start or switch start timer
  • 16 programmable mixes
  • 0.5% mix rate increments
  • Origin mixing
  • Flap delay and elevator compensation
  • Dual rates and expo
  • Diversity antenna
  • 4000mAh LiPo transmitter battery
  • Global charging system
  • X-Plus™ technology expandability up to 20 channels
  • Large, backlit LCD screen
  • Includes AR9020 9-Channel DSMX receiver
  • Includes 3 stick end sets
  • 5 menu languages: EN, DE, FR, IT and ES
  • 2048 resolution
  • Language selectable
  • Includes aluminum dual air transmitter stand up case
  • Region settings for global compliance
  • EN328 compatible

Product Specifications

# of Channels:
AR9020 9-Channel DSMX X-Plus Receiver
Programming Features:
Model Memory:
Mode 1-4, User Selectable
Transmitter (Tx) Battery Type:
4000 mAh 2S LiPo Battery


From its premium construction and comfortable ergonomics to its powerful programming features, the DX20 delivers a pro-class flying experience that is second to none. In fact, it’s the only transmitter in its price range equipped with machined aluminum gimbals.

Powerful AirWare™ Software for Expert Pilots
The Spektrum™ AirWare™ software that comes in the DX20 gives expert pilots all the programming features they could want along with a few they never knew they needed. And its intuitive SimpleScroll™ interface makes navigating menus and changing settings as simple as "roll and click."

Multi-Engine Control
The airplane programming includes a multi-engine control option that, when activated, allows you to independently adjust and control up to four engines or motors. You could use it to make individual run-up checks on the ground or synch propeller speeds in flight. It also makes it possible to use asymmetric thrust to tighten the turning radius of large models during ground operations.

ProTrim In-Flight Adjustments
When active, ProTrim will allow you to make small dual rate, expo, mix and differential adjustments in flight.

Programmable Voice Alerts
With voice alerts, you can keep tabs on important functions without ever taking your eyes off what you’re flying. They can be programmed to call out what flight mode you’ve chosen or report telemetry information on demand. If an alarm goes off, you won’t have to look at the transmitter display to see what’s happening. The DX20 will tell you.

Pro-Class Programming for Sailplanes
In addition to extensive airplane and heli programming, the DX20 has the most impressive sailplane programming features you'll find in any handheld transmitter. Ten available flight modes, 5 wing types, 3 tail types, 2 motor types, flap delay with elevator compensation – it has it all. You even have the ability to adjust individual servo characteristics (end points, travel, center, etc.) for all 20 channels.

Built-In Sequencer
Program a sequence of switch-activated events with time delays between each event. For instance, with a flip of the gear switch you could have an auxiliary channel open landing gear doors, then have the retract channel lower the landing gear, followed by the auxiliary channel closing the gear doors after the gear is extended.

Built-In Servo Balancer
No more will you need a complicated network of little boxes littering your fuselage if you want to balance servos. You can precisely balance the output of swashplate servos or multiple servos on a single control surface with the transmitter using a 7-point curve mix.

Wireless Trainer Link
This exclusive Spetkrum technology gives DX20 users the ability to wirelessly link up with other Spektrum transmitters and specially-equipped Spektrum FPV headsets. Once bound to another transmitter or component, ModelMatch™ technology will allow the DX20 to re-link without having to go through the bind process again.

With Wireless Trainer Link, you could:

• Wirelessly ''buddy box'' with another DSM2®/DSMX® transmitter when teaching someone to fly.

• Assign gimbal functions to a 2nd ‘camera’ transmitter when flying a camera drone so you can focus on avoiding obstacles and maintaining visual contact while someone else lines up the shot.

• Link with specially-equipped Spektrum FPV headsets to wirelessly control head tracking and remotely change video frequencies on the fly.

250-Model Memory
The enormous capacity of the DX20’s on-board memory means you will rarely, if ever, need to juggle models between transmitter memory and your SD card. The model memory menu is easier to navigate too. Only memory slots with model settings saved to them will appear. You won't have to scroll through empty slots or move models around if one is deleted.

Because the DX20 uses the same AirWare™ software as many other Spektrum transmitters, you can share model setups across platforms with almost any Spektrum pilot.

Stay Up to Date
Register your DX20 and receive alerts whenever Spektrum Airware software updates are available. You also gain access to a growing library pre-set model setups for the most popular Horizon Hobby aircraft.

Programming Features
The DX20 has all the programming functions you need to fly everything from collective pitch helis and multi-rotor aircraft to competition sailplanes and giant-scale jets.

• 11 Wing Types: 1 Aileron, 2 Aileron, Flaperon, 1 Aileron + 1 Flap, 1 Aileron + 2 Flap,
2 Aileron + 1 Flap, 2 Aileron + 2 Flap, Elevon, Elevon B, 4 Aileron, 6 Aileron
• 6 Tail Types: Normal, V-Tail A, V-Tail B, 2 Elevator, 2 Rudder, 2 Rudder + 2 Elevator
• 2 Canard Options with Elevon Wing Types: Canard + 1 Rudder, Canard + 2 Rudder
• Independent Multi-Engine Control for Up to 4 Engines or Motors
• ProTrim In-Flight Adjustment of Rates, Expo, Mixes and Differential
• AS3X® Gain Adjustment
• Flap Delay and Elevator Compensation
• 5 Flight Modes
• Dual Rates and Expo
• 0.5% Mix Rate Increments
• 16 Programmable Mixes

• Active Gyro and Governor Trim
• 7-Point Throttle Curve
• 7-Point Pitch Curve
• 7-Point Tail Curve
• 7 Swash Plate Types: Normal, 3-Servo 120˚, 3-Servo 135˚, 3-Servo 140˚, 3-Servo 90˚,
4-Servo 90˚, 2-Servo 180˚
• Swash Plate Timing
• ProTrim In-Flight Adjustment of Rates, Expo, Mixes and Differential
• 5 Flight Modes
• Dual Rates and Expo
• 0.5% Mix Rate Increments
• 16 Programmable Mixes

• 5 Wing Types: Single Aileron, Dual Aileron, Dual Aileron + Single Flap, Dual Aileron + Dual Flap, Quad Aileron + Dual Flap
• 3 Tail Types: Normal, V-Tail A, V-Tail B
• Motor Throttle Switch Assignment
• Aileron and V-tail Differential
• Camber System
• Camber Preset
• ProTrim In-Flight Adjustment of Rates, Expo, Mixes and Differential
• AS3X Gain Adjustment
• Flap Delay and Elevator Compensation
• 10 Flight Modes
• Dual Rates and Expo
• 0.5% Mix Rate Increments
• 16 Programmable Mixes

• Multirotor Channel Inputs – ALT (Altitude), ROL (Roll), PIT (Pitch), YAW
• Multirotor Checklists, Warnings and Voice Alerts
• Simplified Multirotor Flight Mode Setup and Switch Assignment

Includes AR9020 Receiver with X-Plus™ Technology
Both the DX20 and the AR9020 receiver it comes with have X-Plus channel expansion capabilities. This means you can add up to eight extra channels with an X-Plus channel expansion module (SPMXP8000 - sold separately). Just plug the module into the receiver, bind it and then assign the extra channels to any function you want.

Fly Smarter with Built-In Telemetry.
Built-in telemetry gives you real-time information on things like your model's battery voltage, signal quality, engine or motor temperature, airspeed, altitude and more. You can have the DX20 recite this information on demand using programmable voice alerts. You also have the option of logging telemetry data to the transmitter’s SD card for review after the flight.

To use the telemetry function, your model must be equipped with a Spektrum telemetry module and telemetry sensors (all sold separately). You will find there are Spektrum telemetry sensors for tracking just about any model function you can think of, and new ones are being added all the time.

Superior Ergonomics. Made to Fit the Way You Fly.
The weight distribution and ergonomics of the DX20 have been optimized to fit the way you fly. The result is a sense of balance and comfort that perfectly complements the speed and precision of DSMX technology.

Notable features include:
• Comfortable leather side grips
• Adjustable stick length and tension
• Machined aluminum, quad-bearing gimbals
• User-adjustable mode configurations (1, 2, 3 or 4)
• User-assigned switch functions
• Easy-to-read backlit screen
• Intuitive SimpleScroll programming interface
• Includes 3 stick end sets – short, medium and long

Manuals and Support


Get aircraft or vehicle set-ups for your transmitter.

Download Audio FilesSpektrum Model Setups

Software Updates

You must register your product to receive updates.

Check for Updates


PRODUCT BULLETIN: Spektrum™ DX20 DSMX Tranmitter (SPM20000)

May 12, 2018
Download English PDF Version Here

Product:Spektrum™ DX20 transmitters with PID numbers beginning with:

  • AO6
  • AO701
  • AO702
  • AO703

NOTICE: Horizon Hobby, LLC has previously made efforts to quarantine and repair transmitters with wire routing problems. We are now able to better identify the transmitters affected by this issue. Even if Horizon Hobby had previously serviced your transmitter, please review your PID number to see if
your transmitter requires service. Transmitters with a PID number ending in CMR are exempt from this bulletin.

Issue: The wire routing path can cause excessive wear on internal connections..

What To Do: Please fill out the Repair Request Form found here. After completing and submitting the Repair Request Form, Horizon Hobby will e-mail a shipping
label for you to use to return the transmitter.
Transmitters sent to Horizon Hobby for this service bulletin will receive priority in the service center. You will not incur any repair fees or charges, if a repair is necessary.


Finding the PID number:

The PID number is a manufactured identification number and is located on the outside of the product box and also under the battery lid on the DX20 as shown.

Corrective Action:

  1. Export all programmed models to an SD card.

  2. Remove the following items from the transmitter:

  • SD Card
  • Transmitter Battery
  • Neck Strap
  • Any Aftermarket Accessories (cell phone mounts, Gimbal sticks, etc...)

  3. Carefully wrap the transmitter in bubble wrap and pack the transmitter into a strong cardboard box, ensuring the transmitter will not move around in transit.

  4. Attach shipping label and return address on outside of box

If you purchased your product outside of the US and Canada, please see the retailer or distributor you purchased your product from for assistance.

Horizon Hobby, LLC disclaims all liability and warranties for any consumer who does not act upon this bulletin. We apologize for this inconvenience. If you have any questions, please call Horizon Hobby Product Support at 877-504-0233.

Contact Information
Country of Purchase
Horizon Hobby
Contact Information
United States of America
Product Support



4105 Fieldstone Drive

Champaign, Illinois, 61822 USA

©2018 Horizon Hobby, LLC. PowerSafe, DSMX, Horizon Hobby and the Horizon Hobby logo are trademarks or registered trademarks of Horizon Hobby, LLC.
The Spektrum trademark is used with permission of Bachmann Industries, Inc. 58653 (55436

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