 Ever since Spektrum released the DX6 2.4GHz DSM park flyer system, we’re sure more than a few of your customers have been eagerly anticipating the day this technology would be made available for all types of RC aircraft. We are happy to say that day has arrived with the new DX7 7-Channel 2.4GHz DSM2 Aircraft System. Now you can fly anything from tiny electric helis to big gas powered IMAC planes without regard to frequencies and free from fear of interference.
One of the best things about the DX7 is that the key features of its incredibly advanced technology are easy to explain. DSM2™Like the DSM technology used in the DX6, DSM2 provides an impenetrable 2.4GHz spread spectrum RF link that's immune to every known type of RC interference. The big difference with DSM2 is that it processes its signal faster than any high-end 36MHz PCM system. In fact, many of the pro-level aerobatic pilots who have tested the DX7 describe DSM2’s response time as almost telekinetic. AR7000 DuaLink™ Receiver Comprised of a compact main receiver that is linked by a 6-inch lead to an even smaller satellite receiver, 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 combines it to form the most vivid “picture” of an RF signal than has ever been possible before. And the AR7000’s short 1 1/4 –inch antennas don’t require any external exposure, so installation is an absolute breeze. ModelMatch™ and ServoSync™ ModelMatch™ puts an end to the “wrong model” syndrome by embedding a unique code for each aircraft’s model memory in the DX7’s signal. If the wrong model’s name is on the transmitter LCD screen, the aircraft’s controls will not respond until the right model memory is chosen. ServoSync™ re-sequences the bits of data the DX7 transmits based on the type of mixing that is selected. So, if a modeler is using dual elevator on a big IMAC plane or a 3-servo CCPM setup on a heli, ServoSync will see to it that those servos working together receive their impulses together so servo movement is better synchronized.
AR6000 Compatiblity Existing DX6 owners, and anyone else who flies small electric models, will be pleased to know that the AR6000 park flyer receiver works perfectly with DX7. In fact, the AR6000 will actually benefit from the DX7’s signal speed advantages, as well as ModelMatch and ServoSync. DX7's Programming Features That Grow With You 
In addition to its groundbreaking DSM2 technology, the DX7’s programmability is tops. Assignable switches, all-in-one dual rate/expo options, plenty of P-mixes, 20 model memory, software for airplanes and helicopters—modelers will be able to do it all on a highly refined, detailed dot-matrix screen.
DX7 FAQs Q: What is the range of the DX7? Can I fly large scale airplanes and helicopters with the system?
A: The DX7’s range allows even giant-scale airplanes, jets and unlimited class sailplanes to be flown to the limits of sight. The AR7000 receiver incorporates a second remotely mounted receiver thatsees a slightly different RF environment. This remote receiver is the key that allows sophisticated aircraft of all sizes and types to maintain a solid RF link out to the limits of sight.
Q: Will the DX7 work with AR6000 park-flyer receivers that are included with the DX6?
A: Yes. The AR6000 receiver included with the DX6 works perfectly with the DX7 transmitter. It actually benefits from the faster response time of DSM2 as well as the DX7’s ModelMatch and ServoSync™ features. It’s important to remember though that the AR6000 should only be used in park flyer-type airplanes or mini helicopters. Despite the many benefits the DX7 gives the AR6000, it does not allow it to be flown in large glow, gas or turbine aircraft.
Q: Since the DX7 works with the AR6000, does this mean I can use my DX6 with the AR7000 receiver?
A: No. The DX6 uses a different DSM protocol than the AR7000.
Q: How long will the batteries last in the transmitter?
A: The included 1500mAh transmitter battery offers nearly 6 hours of flight time in the DX7 transmitter.
Q: Can I use various brands of servos including digitals with the DX7?
A: Yes. All popular brands of three-wire servos including digitals and even high-current-draw digital servos work with the DX7 system.
Q: The receiver has an extra part attached to it. What does this part do?
A: The AR7000 incorporates two receivers; an internal receiver is located on the main board and the extra part you’re referring to is actually an external (or satellite) receiver. By mounting the external receiver in a slightly different location with its antenna oriented in a different direction, this greatly improves the RF link in difficult environments.
Q: Any guidelines for mounting the receiver?
A: Just mount the main portion of the receiver exactly as you would a conventional 36MHz receiver in you airplane or heli but leave the antennas facing outward. The external receiver antennas should be mounted at least two inches from the main receiver antennas. Ideally the two receiver antenna arrays will be oriented 90 degrees to each other. In an airplane, the side of the fuselage or in the turtle deck is perfect for mounting the external receiver. For helis, the side of the radio tray is a good spot for the external receiver. Servo tape works great for holding the external antenna in place.
Q: The antenna wires are very short. Why so short and do they really work?
A: Each antenna wire is 1-1/4-inches long. The 2.4GHz wavelength is much shorter than 36MHz and that is the reason the antenna is this short length. It makes mounting the receiver in the model much easier because you don’t have to worry about what to do with the long antenna wire.
Q: When using long servo leads and/or Y-harnesses should I use amplifier chokes or other filters?
A: No. Spektrum’s 2.4GHz system is immune to interference caused by long servo leads and there is no need to add filters. In fact some types of amplified Y-harnesses won’t operate with the Spektrum system.
Q: What’s included with the system?
A: Each DX7 system comes with an AR7000 Dual Receiver, a 1500mAh Ni-MH rechargeable transmitter pack and 4-DS821 72 oz/in digital servos.
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Servo Compatibility |
JR Servos are fully compatible with
other RC systems such as Spektrum,
Sanwa, Futaba and Hitech. They are fully plug
compatible and can be used without any modifications. |
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