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The Spektrum Team has been investigating sporadic reports from DSMX transmitter owners using their products in DSM2 mode. We have discovered that in some rare instances, DSMX equipped transmitters with the Product ID (PID) within this bulletin, may have a backwards compatibility issue that could cause a "hold" with the following superseded DSM2 receivers: AR500, AR6100, AR6100E, AR6110, AR6110E, AR6200 and AR6300. Note: This bulletin does not apply to DSM2 only transmitters.If you have a DSMX transmitter with one of the following PIDs, please complete the Transmitter Service Request Form to receive a prepaid shipping label to send your transmitter to Horizon Hobby for a free firmware update.
The PID is located in the battery compartment of your transmitter.
Transmitters with affected PIDs may be found in the following products: Blade mCP X RTF (BLH3500), E-flite Apprentice 15e RTF (EFL2725), Hangar 9 Alpha 40 DSM2 RTF (HAN4400) ,Hangar 9 P-51 Mustang MkII PTS RTF (HAN4425), Hobbyzone Super Cub DSM RTF (HBZ7400), ParkZone Radian RTF (PKZ4700), ParkZone P-51D BL DSM RTF (PKZ2200), ParkZone F4U Corsair RTF (PKZ4600), Phoenix R/C Pro Simulator 3.0 with DX5e (RTM30R5510/RTM30R55101). DX6i/DX5e/DX4e:PID's beginning with one of the following prefixes: HS, HH, HT, HE, HA
DX8:PID's beginning with one of the following prefixes: HS, HH, HT, HE, HA, HO, HM, HR DX7:PID's beginning with the following prefix: HA JRP9503/JPR9309:PID's beginning with the following prefix: TM
We apologize for this inconvenience. Horizon disclaims all liability and warranties for any consumer failing to act upon this product bulletin. Always check your transmitter and equipment prior to each flight.
Spektrum Product Development has been investigating reports from DX8 transmitter customers experiencing servo movements inconsistent with corresponding transmitter stick input.
As a precautionary measure, Horizon Hobby would like DX8 customers to perform the Monitor Test to examine Gimbal controls over the entire range of each axis of input. Expected results for the Monitor Test should show smooth tracking with corresponding stick input. If the Monitor "jumps", hesitates, or is seen in a channel other than what is being tested, please follow the Monitor Test instructions below to test DX8 Gimbal movement:
Monitor Test:Step 1: Turn on power switch. Ensure left stick position (throttle) is low and Flap/Gyro switch is in position 0 or all the way up.Step 2: Press the roller to enter the Function List menu.
Step 3: Using the roller, scroll to the bottom of the Function List menu and depress roller to select Monitor function.
Step 4: Note the position of the Aileron (AIL) and Rudder (RUD) positions. Ensure all trims are centered and sub-trims are zero before continuing to Step 5.
Step 5: Move the Throttle (Left side) and Elevator (Right side) gimbals up and down being very careful not to touch the control sticks. While moving the gimbals up and down, note the AIL and RUD positions on the Monitor.
ONLY touch the Gimbal on the outer frame where shown, being very careful not to move the stick as this will falsify the test.
Step 6: If the percentage for the Aileron or Rudder changes by more than 3%, follow the instructions for sending your DX8 transmitter in for inspection. DX8 Transmitter Service Request:
While adjusting a servo's Travel Adjust value in the Servo Setup screen, if the clear button is depressed, both the value and the channel's reversing will reset to their default values of 100% and normal.
This reset could cause an unsafe condition if unnoticed, particularly if the channel has been reversed on the throttle.
Click Here to register your DX8 and download the latest updates.
Recently, the Horizon Hobby Service Center has received a small number of reports from customers claiming un-commanded servo movements and loss of RF link during the activation of the vibrator motor in some DX8's from the initial shipment.
Horizon requests that all DX8 customers with the Product ID (PID) HS008X or HS009X found in the battery compartment carefully check their radios to determine if their transmitter has this issue prior to flying.
Transmitters with a PID other than HS008X or HS009X are not affected by this bulletin.
If you have a DX8 with the affected PID, please perform the following test.
Should you find that your transmitter is affected by this issue, please contact your nearest Spektrum authorized service center to arrange for a free upgrade to your DX8 performed by a Horizon Hobby authorized Technician.
The DX8's powerful Spektrum AirWare software was developed exclusively by Spektrum from the ground up. This
software includes all the programming functions an expert pilot could want, but you don't have to be an expert to
use them. The DX8's intuitive Simple Scroll™ interface lets you "roll and click" your way between menus with ease.
And all the information is presented in crisp, clear detail on a big, backlit LCD screen.
When programming the cyclic and pitch mixing for a helicopter, it is possible for the sum of the two mixing
values to exceed the mechanical travel limits of the servos. This can cause them to be overdriven into a locked
position. Spektrum AirWare's Electronic E-Ring prevents this by automatically limiting servo travel if the sum
of the cyclic and pitch values exceeds servo limits.
Fine tune rotor speed and gyro gain while in flight using trim switches you assign.
When selecting a wing type for an airplane, Spektrum AirWare graphically depicts the type you've chosen and
will automatically configure the necessary mixes for the pilot. This saves time and reduces the chances for
error when programming complex control surface configurations.
The DX8's built-in telemetry feature gives you vital, real-time information about what's happening with your
model in flight; information that can prevent crashes and maximize performance. The telemetry data appears in an
easy-to-read format on the large backlit LCD screen so you can reference it at a glance. You can also have the DX8
alert you with an audio or vibe alarm whenever any telemetry values exceed limits you define. The DX8 will
initially be able to track four key safety and performance factors:
Never again will you have to wonder whether or not you have enough voltage to keep flying. Being able to
monitor voltage will also help you detect a worn out battery pack before it prematurely ends your flight. The
telemetry module is plugged into the receiver and will automatically relay receiver voltage. A separate sensor
for tracking main battery voltage in electric aircraft will be included.
Is there enough airflow reaching an electric motor? Is my battery getting too hot? With the DX8, you will get
real-time answers and be able to take action well before damage occurs. One temperature sensor is included.
The telemetry module will keep tabs on the quality of the signal coming to the receiver and send this
information back to the DX8 where it is represented on the LCD screen using a familiar "signal bar" scale.
Pilots can use the RPM telemetry data to check the effectiveness of new mixture settings, new battery packs, or
perhaps a new propeller/motor combination. The RPM sensor is sold separately.
*full-range telemetry module included with DX8 system
Beyond new software and telemetry, the DX8 is also the first Spektrum radio to introduce the Spektrum Data
Interface™. The SDI is designed for use with standard SD memory cards and adds a whole new level of flexibility
and ease-of-use. With the SDI, you will be able to:
Share setups with other DX8 owners at the field or transfer them from your SD card to your PC and attach them
an e-mail. This makes it easy to gain from the experience of others or help others succeed.
The DX8 has enough on-board memory for up to 30 models before you even need to think about using the SDI. But
with the SDI, memory for thousands of models could be stored on the SD card or transferred to a PC hard drive
With the Spektrum Data Interface, you won't have to send your DX8 into a service center to get the latest
Spektrum AirWare enhancements. You can download them onto your SD card and upload them to the DX8 yourself.
The DX8's weight distribution and ergonomics 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 DSM2
technology. Some of the more notable features include:
Register for software updates and get the latest enhancements here.
The DX8 transmitter is not compatible with the Spektrum AR6000/BR6000 receiver.
Always purchase products 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 DSM2, DSMX or Spektrum.
Attention: Horizon Hobby has confirmed that all Spektrum Products being sold by KoKo Technology are counterfeit. We consider it a danger to use these products, waive all liability and will not support any warranty or service in regards to them.
This product is not intended for use by children under 14 years of age without direct adult supervision.
Understanding Spektrum Telemetry Tutorials
Please follow the instructions in this tutoral to find your serial number - https://youtu.be/p8BcdsZd1eA
Please follow the instructions in this tutoral to learn how to register your Spektrum RC products- https://youtu.be/Bu7ObvRU-yo
Please follow the instructions in this tutoral to learn how to downloadn and install firmware updates for your Spektrum Radio- https://youtu.be/5VBGEbgS9pQ
Visit the product page on HorizonHobby.com for your transmitter and click on the "Manuals and Support" tab for downloadable setups.
Spektrum receivers are compatible with most popular speed controls and servos on the market.
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.
These systems usually transmit a narrow band signal and rapidly jump through a fixed set of frequencies, spending a few milliseconds on each frequency.
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 safety feature that prevents a pilot from flying a model when the model selected in the radio is not correct.
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/.
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) modification of or to any part of the Product, (iv) attempted service by anyone other than a Horizon Hobby authorized service center, or (v) Products not purchased from an authorized Horizon dealer. 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, final assembly, modification 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 conflict of law principals). This warranty gives you specific 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 fill out our inquiry form or call 877.504.0233 toll free to speak to a Product Support representative. You may also find information on our website at www.horizonhobby.com. Inspection or Services If this Product needs to be inspected or serviced, 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 https://www.horizonhobby.com under the Support tab. 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 office. 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 notification 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 notification. 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 ½ hour of labor. In addition you will be billed for return freight. Horizon accepts money orders and cashiers 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 https://www.horizonhobby.com/Service/Request. United States: Electronics and engines requiring inspection or repair should be shipped to the following address: Horizon Service Center 4105 Fieldstone Road Champaign, Illinois 61822 All other Products requiring warranty inspection or repair should be shipped to the following address: Horizon Product Support 2904 Research Road Champaign, Illinois 61822 Please call 877-504-0233 or For questions or assistance, please fill out our inquiry form with any questions or concerns regarding this product or warranty. United Kingdom: Electronics and engines requiring inspection or repair should be shipped to the following address: Horizon Hobby Limited Units 1-4 Ployters Rd Staple Tye Harlow, Essex CM18 7NS United Kingdom Please call +44 (0) 1279 641 097 or e-mail us at email@example.com with any questions or concerns regarding this product or warranty. Germany: Electronics and engines requiring inspection or repair should be shipped to the following address: Horizon Technischer Service Hamburger Strasse 10 25335 Elmshorn Germany Please call +49 4121 46199 66 or e-mail us at firstname.lastname@example.org with any questions or concerns regarding this product or warranty.
France:Electronics and engines requiring inspection or repair should be shipped to the following address:
Horizon Hobby SAS14 Rue Gustave Eiffel Zone d’Activité du Réveil Matin 91230 Montgeron
Please call +33 (0) 1 60 47 44 70 or e-mail us at email@example.com with any questions or concerns regarding this product or warranty.
Technical questions about this Spektrum product should be directed to Horizon Hobby's Product Support Department:
Horizon Hobby, LLC. ATTN: Product Support 2904 Research Road Champaign, IL 61822
To place a Horizon Hobby Support Inquiry please visit our Inquiry Form Support Phone:(877) 504-0233 Fax:(217) 355-1552
If you would like to purchase this product, please go to the Store Locator or contact the Horizon Hobby Consumer Sales Department:
Horizon Hobby, LLC. ATTN: Consumer Sales 2904 Research Road Champaign, IL 61822 Email: firstname.lastname@example.org Sales Phone:(800) 338-4639 Fax:(217) 355-1552
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