Product: Spektrum DX18G2 and Spektrum DX18 Stealth Edition transmitters with Region: US-247 in the System Settings Screen.
Issue: It has come to the attention of Horizon Hobby, LLC that some DX18G2 and DX18 Stealth Edition transmitters may have a reduction in performance at extreme ranges. Horizon Hobby performed extensive testing to confirm that the reduction in range takes place at extreme ranges well outside normal flying conditions for most conventional flying.
What To Do: Spektrum DX18G2 and DX18 Stealth Edition transmitters with a green dot in the battery compartment and on the box are not affected.
For Spektrum DX18G2 and DX18 Stealth Edition transmitters that do not have a green dot in the battery compartment and on the box, follow the steps listed below to perform a full range test. If the transmitter fails the full range test, 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. Typical turnaround time for a repair is 7–10 business days. You will not incur any fees or charges for the repair, if it is deemed necessary.
For customers outside of North America or Europe, please contact your local distributor.
Full Range Ground Test
1. DX18G2/Stealth Edition Transmitter.
2. Any Spektrum full-range receiver with servos attached (or an electric aircraft with full range receiver installed), together with the appropriate charged battery.
3. A small non-conductive (non-metal) stand or table approximately 30 inches (76.2 centimeters) tall (to place the transmitter on when testing).
4. Smart phone with GPS device for measuring distance.
An open area that provides an uninterrupted direct line of sight for .6 miles
1. Setting Failsafe- Failsafe will be used to determine if the signal is lost. If using an electric airplane, remove the propeller and bind the DX18G2/Stealth Edition transmitter to the full range receiver at low throttle. When bound, verify that failsafe is working by increasing the throttle position to a low RPM then turn off the transmitter. The motor should turn off indicting loss of signal.
2. If using a receiver and servo only, put the receiver in small a small cardboard box with the antenna taped verticality and the throttle servo located so that it’s easy to see. Bind the DX18G2/Stealth Edition to the full range receiver at low throttle. When bound, increase the throttle position to full throttle, then turn off the transmitter while observing the throttle servo. Verify that the throttle servo moves to the low-throttle position.
3. Place an approximately 30-inch (75 cm), non-conductive stand or table in an area that allows an unobstructed, line-of-sight view from the table to the area where the transmitter range test will be performed.4. Power on the transmitter and receiver, arm the ESC and/or confirm the throttle servo is operational. With propeller removed, increase the throttle position to a low RPM setting. If using a throttle servo only, increase the servo position to full throttle and note the location of the servo arm for later reference. At this throttle position, place the DX18G2/Stealth Edition transmitter on the table/stand.
5. Walk or drive the model/receiver 0.5 mile away from the operating transmitter. While facing the transmitter, and with an unobstructed line of sight view, with the model/receiver held at chest height, the motor should remain on at 0.5 miles. If using a receiver/servo only, the servo should remain in its noted full throttle location.
6. If at 0.5 miles the system goes into failsafe (Low throttle position), the radio should be returned to Horizon for service by following the above instructions.
Before Sending Your Transmitter to Horizon Hobby for Service
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. DX18 Stealth Edition Only: Do not return the DX18 Stealth Edition Transmitter Case.
We apologize for this inconvenience. Horizon disclaims all liability and warranties for any consumer failing to act upon this product bulletin.
The Spektrum™ AirWare™ software that comes in the DX18 offers all the programming features an expert pilot could want. And the intuitive SimpleScroll™ interface makes navigating menus and changing settings as simple as "roll and click." It's almost like using a mouse.
Many Spektrum AirWare features are innovations you won't find anywhere else; innovations that make flying safer and programming easier.
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 transmitter will tell you.
Pro-Class Programming for Sailplanes
In addition to extensive airplane and heli programming, the DX18 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 18 channels.
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
The wireless trainer link gives instructors the option to wirelessly "buddy box" with another DSM2®†/DSMX® transmitter. Once bound to another transmitter, ModelMatch™ technology will allow the DX18 to re-link without having to go through the bind process again.
† DSM2 not available in EU.
Stay up to date
Register your DX18 transmitter and receive alerts whenever a new AirWare version is available.
250 Model Memory
The enormous capacity of the DX18'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 DX18 Gen 2 uses the same software platform as the DX6 Gen 2, DX7 Gen 2 and DX9, you can share model setups with owners of those transmitters as well.
The DX18 has all the programming functions you need to fly everything from tiny collective pitch helis to competition sailplanes and giant-scale jets.
11 Wing Types: Single Aileron, Dual Aileron, Flaperon, Single Aileron + Single Flap, Single Aileron + Dual Flap, Dual Aileron + Single Flap, Dual Aileron + Dual Flap, Elevon, Elevon B, Quad Aileron, Six Aileron
2 Canard Options (1- and 2-Servo) with Elevon Wing Types
6 Tail Types: Normal, V-Tail A, V-Tail B, Dual Elevator, Dual Rudder, Dual Rudder + Dual Elevator
Both the DX18 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 DX18 recite this information on demand using the programmable voice alerts. You also have the option of logging telemetry data to the transmitter’s SD card for review after the flight.
A Spektrum TM1000 telemetry module and telemetry sensors (all sold separately) are required. 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 DX18 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, no-slip rubber grips
Adjustable stick length and tension
Smooth, 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
Dual Diversity antenna (vertical array with horizontal array in handle)
18 fully-proportional channels
Virtually unlimited model memory-transmitter stores up to 250 models and only populates the model list with models the user has configured
Programmable and customizable voice alerts
Wireless trainer link
Built-in telemetry with vibe or voice alerts
Extensive airplane, helicopter and sailplane programming
Throttle start or switch start timer
Region settings for global compliance
16 programmable mixes
0.5% mix rate increments
Flap delay and elevator compensation
11 airplane wing types
6 airplane tail types
2 canard options (1- and 2-servo) with elevon wing type
5 airplane and heli flight modes
Dual rates and expo
Active gyro trim
7-point heli throttle curve
7-point heli pitch curve
7-point heli tail curve
6 swashplate types
5 sailplane wing types
3 sailplane tail types
10 sailplane flight modes
2600mAh 2S LiPo transmitter battery
Global charging system
X-Plus™ technology expandability up to 18 channels
11ms frame rate
Large LCD screen
5 menu languages: EN, DE, FR, IT and SP
2048 resolution on the first 10 channels
Includes AR9020 receiver
International and Domestic Air Transmitter AC Adapter
DSM or Digital Spectrum Modulation is Spektrum's proprietary method of implementing 2.4GHz spread spectrum technology for the R/C industry. DSM divides the 2.4GHz band into 80 individual channels (frequencies) and incorporates direct sequence spread spectrum with an embedded GUID (Globally Unique Identifier) code. DSM has been painstakingly optimized by our engineers for RC surface and aircraft use, offering the most robust RF link in the industry.
DSM2 is the 2nd generation of Spektrum DSM technology and remains a premier 2.4GHz choice even today. Using the same superior wideband DSSS foundation that all Spektrum technology is based on, DSM2 consistently provides faster response and more precision than most non-DSM 2.4GHz protocols.
DSMX is a natural evolution of DSM2 technology that is the result of several years of development, optimized for pilots and combining Wideband DSSS and Frequency Agility. It builds on what has come before and takes DSM to the next level of robustness, reliability and efficiency without leaving current DSM2 users behind. DSMX represents the world's first wideband, frequency-agile 2.4GHz signal protocol and the most advanced spread spectrum RC technology to date.
The foundation DSMX is built on is the same foundation as DSM2™ - the superior on-channel interference resistance and coding gain of wideband DSSS. Compared to the wideband signal of a DSM2 or DSMX™ system, the narrow-band signal of other 2.4 transmitters is more likely to suffer crucial data loss in the event of on-channel interference. Think of wideband 2.4 as a river and narrow-band 2.4 as a stream. It takes much more interference to stop a river than it does to stop a stream.
The big reason wideband is so robust is coding gain. Essentially what this means is that the unique coding in a DSM2 or DSMX wideband signal allows it to be heard well above the noise of surrounding 2.4GHz signals without requiring any more power. In fact, a Spektrum wideband signal can achieve as much as 3X the range of its narrow-band competition using the same amount of power.
For the most part, yes. DSM2 transmitters are forward compatible with DSMX receivers and DSMX transmitters are backward compatible with DSM2 receivers. And because DSM2 and DSMX share the same wideband DSSS foundation, all Spektrum users will enjoy superior range, speed and precision whether they're using DSM2 equipment, DSMX equipment or a combination of both. The only exception is the DXe which is DSMX-only and not compatible with DSM2 receivers.
Yes, but DSM2 users who rarely, if ever, fly in big events or other "noisy" 2.4GHz environments may find the DSM2 equipment they have now is all they will ever need. The difference DSMX makes is only apparent when hundreds of 2.4GHz systems are in use at once. To see if your transmitter is eligible for the DSMX add-on, please visit horizonhobby.com, click on the “radios” tab, and select “DSMX addons” for more details.
A resequencing of the data a Spektrum transmitter transmits based on the type of mixing you select. This feature helps to sync control services that are connected (such as a swash plate on a helicopter) and is used in radios that have many channels.
The Spektrum™ X-Plus™ 8 module lets you add 8 fully proportional channels to specially equipped Spektrum transmitters and receivers with 10 or more proportional channels. Just plug it into the X-Plus port of a compatible receiver. It is ideal for scale modelers who like to push realism to the extreme with working accessories and lights in addition to the regular control functions. The DX10t and DX18 offer X-Plus.
You should have no problem maintaining control as long as you maintain direct line-of-sight with your model. If you try to fly behind a group of trees or otherwise obstruct your direct line-of-sight, you could be susceptible to losing your control link.
You can download Spektrum Apps from the Google Play Store at https://play.google.com/store/apps/developer?id=Horizon+Hobby,+Inc. or from the iTunes store at https://itunes.apple.com/us/developer/horizon-hobby-inc/id415542050
The length of the antenna is on a Spektrum receiver is set and tuned to optimize the range and performance of the receiver. We do not recommend altering the length of the antenna on any Spektrum Receiver.
For help and assistance on your Spektrum products you can contact Horizon Hobby Product Support at https://www.horizonhobby.com/content/service-center-render-service-center, the Spektrum Facebook page at https://www.facebook.com/SpektrumRC/ pr the Horizon Hobby Facebook page at https://www.facebook.com/HorizonHobby/.