Recently Horizon Hobby Service Department discovered a software issue in DX7 transmitters with HA002J, HR003J, HR004J, HR005J, HR006J, HR007J, HR008J or HR009J Product IDs (PIDs) and FCC ID: BRWDAMTX11.
The issue Service Center discovered affects ModelMatch for models 11–20 when binding and saving new models into memory.
Horizon Hobby has a software update to correct this issue. This software update can only be performed by Horizon Hobby's Service Department authorized Technicians.
If your DX7 has one of the following PIDs: HR003J, HR004J, HR005J, HR006J, HR007J, HR008J or HR009J and FCC ID BRWDAMTX11.
Click here to complete the Spektrum DX7 Return Request form.
You may also e-mail the Horizon Hobby Product Support team. Please type "DX7 Return Request Form" in the subject line. Please include your shipping address, daytime phone number, and the date code from your Spektrum DX7 transmitter. Click here to e-mail product support.
Horizon will pay for all ground shipping.
If you have further questions, please call Horizon Hobby Product Support at 877-504-0233.
Consumers outside the US and Canada should contact their local retailer or distributor. A list of International distributors may be found at: www.horizonhobby.com/StoreLocator.
As with all RC aircraft, please check your transmitter and equipment prior to each flight.
Horizon Hobby and the Spektrum team apologize for this inconvenience.
Configured to default to airplane model type (all heli programming is available)
With the DX7 you’ll be able to fly anything from micro electric helis, to big gas-powered IMAC planes without regard to frequencies and free from fear of interference. Calling this kind of thing “revolutionary” just doesn’t cut it. It is nothing less than a quantum leap in RC technology that will change how you fly forever. Never again will the availability of a frequency pin dictate when you can take off. Never again will you have to ask, “What channel are you on?” Never again will your flying experience be interrupted by model-generated RF noise, interference from commercial broadcast towers, or anyone on another RC system.
The big difference with DSM2 is that it not only flies any size model with absolute precision and complete freedom from interference, but it also processes its signal faster than any high-end 72MHz PCM system.
DSM2—Security and Speed: Unlike most first-of-its-kind innovations, DSM2™ is not an unproven concept. It is based on the same Spektrum 2.4GHz DSM (Digital Spectrum Modulation) that RC car racers, as well as micro electric and parkflyer modelers, have been enjoying for at least two years. Like DSM, DSM2 provides an impenetrable radio link that’s immune to every known type of RC interference. Because it operates at 1024-bit resolution, it provides the kind of locked-in response that will have pilots feeling more connected to their models than ever before.
AR7000—Spectacular Signal Clarity: The AR7000 dual receiver that comes with the DX7 is key to the system’s incredibly robust RF link. Comprised of a compact main receiver that is linked to an even smaller satellite receiver by a 6-inch lead, the AR7000 acts as a pair of extremely sharp RF eyes that each take in a slightly different view of the signal environment. Information from both receivers is then processed by patent pending Spektrum software that takes information from each receiver and combines it to form the most vivid picture of an RF signal than has ever been possible before. What’s more, there are no long antennas to accommodate. The AR7000’s short 3-inch antennas don’t require any external exposure, so installation is an absolute breeze.
ServoSync and ModelMatch—Extra Safety and Precision: DSM2 and the AR7000 aren’t the DX7’s only marvels. Spektrum engineers have come up with two more patent pending innovations that you’ll wonder how you ever lived without—ModelMatch™ and ServoSync™. ServoSync is an ingenious new feature that actually resequences the bits of data the DX7 transmits based on the type of mixing you select. So, if you have a dual elevator on your big Extra or a 3-servo CCPM setup on your heli, ServoSync will see to it that those servos working together receive their impulses together. The result is more synchronized servo movement that translates into an undeniable, locked-in feel when you fly. ModelMatch puts an end to wrong model syndrome. Almost everyone who flies RC has at one time or another crashed because of neglecting to verify the model name on the transmitter display during preflight check. A unique code is embedded in the DX7’s signal so that, if the wrong model’s name is on the screen, the model’s controls simply won’t respond.
AR6000-Compatible: DX6 owners and anyone else who flies small electric models will be pleased to know that the AR6000 receiver works perfectly with the DX7, too. In fact, the AR6000 will actually benefit from the DX7’s signal speed advantages, as well as ModelMatch and ServoSync. So whatever the aircraft, be it a .60-size heli or a 15-ounce foamie, it can fly with the DX7.
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 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.
Click the orange box titles below to view DX7 video segments.
THE TRANSMITTER: The DX7 DSM2 transmitter features airplane and heli software, 20-model memory and all the programming functions you would ever need for anything requiring 7 channels. And the large dot-matrix, LCD screen makes accessing and using the software simple and straightforward.
THE SERVOS: The four DS821 servos that come with the DX7 put out an impressive 72 oz/in of torque that is suitable for a wide range of electric, gas or glow aircraft. Their digitally precise output is further enhanced by a robust, high-tech resin gear train that is exceptionally durable for reliable performance flight after flight.
THE AR7000 RECEIVER: The AR7000 Dual Receiver is capable of providing outstanding signal reception beyond visual range, so you can rest assured you have locked-in, precise control no matter how fast you fly.
3-Position Flap Mixing: The DX7 incorporates a three-position flap system that allows the flap and elevator positions to be preset in all three switch positions. An auto function automatically retracts the flaps when the throttle is raised above a preset point such as during an aborted landing or touch-and-go.
Switch Assignment: The DX7 offers switch assignment that lets you conveniently combine dual rates on one of many switches or program them to be activated separately.
Single Screen Dual Rate/Exponential: Punch in dual rate and exponential values in the same screen for aileron elevator and rudder and see the result clearly and graphically depicted on the displayed curve.
5-Point Heli Throttle and Pitch Curves: Four flight modes (normal, stunt 1, stunt 2 and hold) are available, each with its own five-point throttle and pitch curve. Graphical depiction of the curves makes adjustments clear and easy to understand.
Servo Monitor: Keep real-time tabs on each channel’s control position, direction of movement and mixing relationship with this all-in-one servo monitor that can help you visualize mixes before flying.
CCPM Mixing: The DX7 supports mechanical mix helis as well as 3 types of CCPM mixing, including 2 servo 90°, 3 servo 90° and the most common 3 servo 120°. Swashplate aileron, elevator and pitch values are independently adjustable, making precise setup easy.
Gyro Sensing: The gyro function allows two gyro gain presets that can be automatically accessed via flight modes or with the rudder dual rate switch.
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/.
Product Support Tips
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