Spektrum DX7 User manual

Instruction Manual
© 2008 Horizon Hobby, Inc.
4105 Fieldstone Road
Champaign, Illinois 61822
[phone]
www.horizonhobby.com
www.spektrumrc.com
®
Revised 11/08 11329.2
US patent number 7,391,320. Other patents pending.
DSM and DSM2 are trademarks or registered trademarks of Horizon Hobby, Inc.
The Spektrum trademark is used with permission of Bachmann Industries, Inc.
Spektrum radios and accessories are exclusively available from Horizon Hobby, Inc.

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Welcome to the World of Spektrum™DSM2™Full Range Technology
Spektrum’s DX7 is the first-ever full range 2.4GHz Spread Spectrum Radio system for RC aircraft. With
Spektrum’s DSM2 technology, now even large gas- and glow-powered aircraft can take advantage of Spektrum
technology. No longer will you have to wait for a frequency pin or be concerned that someone may inadvertently
turn on to your same frequency. With Spektrum DSM2 technology, when you’re ready to fly any aircraft—from
parkflyer to giant-scale—simply turn on the system, and go flying!
SPEKTRUM DX7 • INTRODUCTIONSPEKTRUM DX7 • INTRODUCTION
DSM2 DuaLink®Technology
Your DX7 transmits on the 2.4GHz band and utilizes DSM2 second-generation Digital Spread Spectrum
Modulation giving visual range in all types and sizes of aircraft. Unlike conventional narrow band systems,
Spektrum’s 2.4GHz digital DuaLink technology is virtually immune to internal and external radio interference.
Included with your DX7 is an AR7000 7-channel receiver. The AR7000 combines an internal and external
receiver, offering superior path diversity. The system simultaneously transmits on two frequencies, creating dual
RF paths. This dual path redundancy, plus the fact that each of the two receivers is located in a slightly different
location exposes each to a different RF environment and creates a bulletproof RF link in all conditions.
Receiver Compatibility
You’ll be glad to know that the DX7 is compatible with all Spektrum and JR DSM receivers including the AR500,
AR6000, AR6100(e), AR6200, AR6300, AR7100(r), AR9000, AR9100, JR921 and JR1221. Note: when using
the DX7 with a park flyer receiver like the AR6000 or AR6100, it’s imperative that the receiver
be limited to use in Parkfly type aircraft only. This includes small electric and non-powered
airplanes and mini and micro electric helicopters.
AR6200, AR7000, AR9000 AR6100, AR6100e, AR6300
AR7100, AR7100R, AR9100

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ModelMatch™
With patent pending ModelMatch technology, you’ll never mistakenly try to fly your model using the wrong
memory again. The DX7 features ModelMatch technology that prevents the operation of a model if the wrong
model memory is selected. During binding, the receiver actually learns and remembers the specific model
memory (1 of 20) that the transmitter is currently programmed to. Later, if the incorrect model is selected in the
transmitter and the receiver is turned on, the model simply won’t operate preventing a possible crash. Change
programming to the matching model memory and you are set to fly.
Using This Manual
For your convenience, this manual is arranged with separate sections for airplane and helicopter software
functions. Airplane Programming is located on pages 31 through 66; Helicopter Programming is located on
pages 67 through 102. Programming functions are discussed in the same order that they appear on the radio.
An explanation of the use and purpose of each feature is provided, followed by an illustration of its LCD display.
A blank data sheet has been included at the end of each section. Once all data has been input for a particular
model, it is highly recommended that you also record it on a copy of the data sheet provided.
SPEKTRUM DX7 • TABLE OF CONTENTSSPEKTRUM DX7 • INTRODUCTION
Table of Contents
Welcome to the World of Spektrum™DSM2™Full Range Technology .....................................................2
DSM2 DuaLink®Technology .................................................................................................................. 3
Receiver Compatibility............................................................................................................................3
ModelMatch™..........................................................................................................................................4
Using This Manual..................................................................................................................................4
Battery Charging...................................................................................................................................10
Transmitter/Receiver ..................................................................................................................... 10
Transmitter Polarity.......................................................................................................................10
Charger.........................................................................................................................................10
Control Stick Tension Adjustment.........................................................................................................11
Removing the Back of the Transmitter ...........................................................................................11
Adjusting the Control Stick Tension..............................................................................................12
Control Stick Length Adjustment ..................................................................................................12
Screen Contrast ....................................................................................................................................13
Advanced Digital Trims .........................................................................................................................13
Tips on Using 2.4GHz Systems.............................................................................................................14
Tips on Using 2.4GHz Systems (continued)..........................................................................................15
Receiver and Servo Installation.............................................................................................................16
QuickConnect™and Brownout Alert ..............................................................................................16
How Brownout Detection Work .....................................................................................................16
Receiver Installation......................................................................................................................17
Servo Installation..........................................................................................................................19
How to Range Test the DX7...................................................................................................................19
Range Testing the DX7..................................................................................................................19
Advanced Range Testing Using a Flight Log .................................................................................20
Advanced Range Testing the DX7..................................................................................................20
Binding.................................................................................................................................................21
SmartSafe™Failsafe ......................................................................................................................21
Flight Log—Optional for AR7000 Receiver...........................................................................................23
Using the Flight Log .....................................................................................................................23
Receiver Power System Requirements ..................................................................................................24
Recommended Power System Test Guidelines......................................................................................24
Airplane Quick Start..............................................................................................................................24
Model Type Selection............................................................................................................................25
Selecting Airplane Mode...............................................................................................................25
Servo Reversing............................................................................................................................26
To Access Servo Reversing...................................................................................................26
Travel Adjust .................................................................................................................................26
To Access Travel Adjust........................................................................................................26
Helicopter Quick Start...........................................................................................................................27
Model Type Selection............................................................................................................................27
Selecting Helicopter Mode....................................................................................................27
Servo Reversing............................................................................................................................28
To Access Servo Reversing...................................................................................................28
Travel Adjust .................................................................................................................................28
To Access Travel Adjust........................................................................................................28
Pitch Curve...........................................................................................................................................29
Adjusting the Normal Pitch Curve.................................................................................................29

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SPEKTRUM DX7 • TABLE OF CONTENTS SPEKTRUM DX7 • TABLE OF CONTENTS
To Access the Pitch Curve Function......................................................................................29
Throttle Curve.......................................................................................................................................30
Adjusting the Normal Throttle Curve.............................................................................................30
To Access the Throttle Curve Function..................................................................................30
Aircraft Programming Guide .................................................................................................................31
Control Identification and Location - Airplane Mode 2..........................................................................31
Throttle ALT .................................................................................................................................. 31
Control Identification and Location - Airplane Mode 1..........................................................................32
Throttle ALT .................................................................................................................................. 32
General Information ......................................................................................................................33
Key Input and Display Functions ..........................................................................................33
System Mode Functions .......................................................................................................................34
System Mode................................................................................................................................34
To Enter the System List Mode .............................................................................................34
System Setup Mode Flowchart..............................................................................................................35
To Enter the System Setup Mode ..........................................................................................35
To Exit the System Setup Mode ............................................................................................35
Model Select/Copy Function ........................................................................................................36
To Enter the Model Select Function ......................................................................................36
ModelMatch .................................................................................................................................36
How ModelMatch Works ......................................................................................................36
To Enter the Copy Function...................................................................................................37
Model Name .................................................................................................................................38
To Enter the Model Name Function.......................................................................................38
Type Select Function.....................................................................................................................39
To Enter the Type Select Mode..............................................................................................39
To Select a Model Type.........................................................................................................39
Model Reset and Integrated Timer Reset....................................................................................... 40
To Perform a DATA RESET or Reset the Integrated Timer ......................................................40
Trainer........................................................................................................................................... 41
To Enter the Trainer Mode.....................................................................................................41
Operating the trainer System.................................................................................................42
Throttle Recovery..........................................................................................................................42
To Activate Throttle Recovery................................................................................................42
Input Select................................................................................................................................... 43
To Access Input Select..........................................................................................................43
Wing Type.....................................................................................................................................44
Normal..................................................................................................................................44
Flaperon Wing Type Selection ..............................................................................................44
Delta Wing Type Selection ....................................................................................................44
To Enter the Wing Type Function ..........................................................................................44
To Select a Wing Type...........................................................................................................45
Flaperon Wing Type Servo Connections ...............................................................................46
Delta Wing Type Servo Connections.....................................................................................46
V-Tail Type Servo Connections.............................................................................................46
Function Mode .............................................................................................................................47
To Enter Function Mode........................................................................................................47
Function Mode Flowchart .....................................................................................................................48
Function List Modes.....................................................................................................................49
To Enter the Function List Mode ...........................................................................................49
To Exit the Function List Mode .............................................................................................49
Dual Rate and Switch Select .........................................................................................................50
To Activate Dual Rate and Switch Select ...............................................................................50
Function Mode Functions.....................................................................................................................51
Dual Rate and Exponential ............................................................................................................51
To Adjust the Dual and Expo Rates .......................................................................................51
To Adjust the Exponential .....................................................................................................52
Reverse Switch .............................................................................................................................53
To Access the Reverse Switch Mode.....................................................................................53
Sub Trim .......................................................................................................................................54
To Access the Sub-Trim Function.........................................................................................54
Travel Adjust .................................................................................................................................55
To Access the Travel Adjust Function....................................................................................55
Elevator-to-Flap Mix Function ......................................................................................................56
To Access the Elevator-to-Flap Mixing..................................................................................56
To Select the Switch to Operate the Flap Mix ........................................................................56
Aileron-to-Rudder Mixing.............................................................................................................57
To Access the Aileron-to-Rudder Mix Function ....................................................................57
To Adjust the Mix Value ........................................................................................................57
To Assign a Switch ...............................................................................................................57
Flap System..................................................................................................................................58
Accessing and Utilizing the Flap System ..............................................................................58
Automatic Landing........................................................................................................................59
To Activate the Automatic Landing Feature ...........................................................................59
Differential Aileron Mixing............................................................................................................60
To Access the Differential Aileron Mixing Function...............................................................60
Programmable Mixing 1–6...........................................................................................................61
Assigning Channels..............................................................................................................62
Assigning Mixing Values......................................................................................................62
Assigning an Offset...............................................................................................................63
Assigning a Switch ...............................................................................................................63
Timer ............................................................................................................................................64
Servo Monitor...............................................................................................................................66
Helicopter Programming Guide.............................................................................................................67
Transmitter Control Identification and Location Mode 2........................................................................67
Transmitter Control Identification and Location Mode 1........................................................................68
General Information ......................................................................................................................69
Key Input and Display Functions ..........................................................................................69
Warning Screen for Throttle Hold/Stunt Mode.............................................................................. 70
Gyro Connections.................................................................................................................70
System Setup Mode..............................................................................................................................71
To Enter the System Setup Mode ..........................................................................................71
To Exit the System Setup Mode ............................................................................................71
Model Select/Copy .......................................................................................................................72
To Enter the Model Select Function ......................................................................................72
To Enter the Copy Function...................................................................................................72
Model Name .................................................................................................................................73
To Enter the Model Name Function.......................................................................................73
ModelMatch .................................................................................................................................73
How ModelMatch Works ......................................................................................................73

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SPEKTRUM DX7 • TABLE OF CONTENTS SPEKTRUM DX7 • TABLE OF CONTENTS
Type Select Function.....................................................................................................................74
To Enter the Type Select Mode..............................................................................................74
To Select a Model Type.........................................................................................................74
Model Reset/Integrated Timer.......................................................................................................75
To Reset a Model ..................................................................................................................75
To Reset the Integrated Timer................................................................................................75
Trainer........................................................................................................................................... 76
To Enter the Trainer Mode.....................................................................................................76
Operating the Trainer System................................................................................................77
Throttle Recovery..........................................................................................................................77
To Activate the Throttle Recovery Function ...........................................................................77
Input Select...........................................................................................................................78
To Select the Function for the AUX 2 Channel ......................................................................78
To Select the Function for the Gear Channel .........................................................................79
Swash Type...................................................................................................................................80
Accessing the Swashplate Types...........................................................................................80
Function Mode Flowchart .....................................................................................................................81
To Enter the Function Mode .................................................................................................. 82
To Exit the Function Mode ....................................................................................................82
List Modes............................................................................................................................................83
Function Mode Functions.....................................................................................................................84
Dual Rate and Exponential ............................................................................................................84
To Adjust the Dual Rate.........................................................................................................84
To Adjust the Exponential .....................................................................................................85
Auto Dual Rate EXP ......................................................................................................................86
To Adjust the Auto Dual Rate ................................................................................................86
Reverse Switch .............................................................................................................................87
Accessing the Reverse Switch Function................................................................................87
Sub Trim .......................................................................................................................................88
To Access the Sub-Trim Function.........................................................................................88
Travel Adjust .................................................................................................................................89
To Access the Travel Adjust Function....................................................................................89
Swashplate Mixing .......................................................................................................................90
Accessing the Swashplate Mix Function...............................................................................90
Throttle Hold................................................................................................................................. 91
To Access the Throttle Hold Function ...................................................................................91
To Access the Throttle Hold Switch Function........................................................................91
Throttle Curve...............................................................................................................................92
To Access the Throttle Curve Function..................................................................................92
Throttle Trim Setting .............................................................................................................93
Hovering Throttle Rocker Setting..........................................................................................93
Exponential Throttle Curve Function.....................................................................................93
Idle Up..................................................................................................................................93
Stunt 1 and Stunt 2...............................................................................................................93
Pitch Curve...................................................................................................................................94
To Access the Pitch Curve Function......................................................................................94
Hovering Pitch Rocker..........................................................................................................94
Revolution Mixing (only used with non-heading hold gyros) .......................................................95
Setting Up Revolution Mixing...............................................................................................95
To Access Revolution Mixing................................................................................................95
Gyro Sensing................................................................................................................................96
To Access the Gyro Sensing Function...................................................................................96
Manual Gyro Sensitivity Adjustment.....................................................................................96
Automatic Gyro Sensitivity Adjustment.................................................................................96
Programmable Mixing 1–3...........................................................................................................97
Assigning Channels..............................................................................................................97
Assigning Mixing Values......................................................................................................98
Assigning an Offset...............................................................................................................99
Timer ..........................................................................................................................................100
To Access the Timer Function.............................................................................................101
Servo Monitor.............................................................................................................................102
General Information ............................................................................................................................103
FCC Information .........................................................................................................................103
Servo Precautions.......................................................................................................................104
General Notes .............................................................................................................................104
Safety Do’s and Don’ts for Pilots.........................................................................................104
Federal Aviation Administration..................................................................................................105
Purpose .............................................................................................................................. 105
Background ........................................................................................................................105
Operating Standards...........................................................................................................105
Information Provided By.....................................................................................................105
Daily Flight Checks.....................................................................................................................106
Limited Warranty Period: ....................................................................................................................107
Limited Warranty.................................................................................................................................107
Damage Limits:...................................................................................................................................107
Safety Precautions: .............................................................................................................................107
Questions, Assistance, and Repairs: ...................................................................................................108
Inspection or Repairs..........................................................................................................................108
Warranty Inspection and Repairs.........................................................................................................108
Non-Warranty Repairs ........................................................................................................................108
Declaration of Conformity...........................................................................................................109
Aircraft Programming Guide ...............................................................................................................110
Helicopter Programming Guide...........................................................................................................111

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Battery Charging
Transmitter/Receiver
It is imperative that you fully charge both the transmitter and the receiver battery packs prior to each
flying session. To do so, using the included wall charger, leave the charger and batteries connected overnight
(16 hours).
The charger supplied with this system is designed to recharge your batteries at a rate of 110mA for the
transmitter and 110mA for the receiver battery pack.
Transmitter Polarity
The center pin on all Spektrum transmitters is negative. Therefore, the center pin on all Spektrum chargers is
negative, not positive. This is different from many
other manufacturers’ chargers and radio systems.
Beware of improper connections based on “color
coded” wire leads, as they may not apply in this
instance. You must make sure that the center
pin of your Spektrum transmitter is always
connected to the negative voltage of your charger
for correct polarity hookup.
Charger
The pilot lamps should always be ON during the charging operation. If they’re not, check to make sure that both
the transmitter and receiver are switched OFF. Do not use this charger for equipment other than Spektrum. The
charging plug polarity may not be the same and equipment damage can result. During the charging operation,
the charger’s temperature is slightly elevated. This is normal.
CENTER
PIN IS
NEGATIVE
OUTSIDE IS POSITIVE
CHARGER PIGTAIL FOR RECEIVER
AFTERMARKET PIGTAIL FOR TRANSMITTER
BLACK TO POSITIVE
BLACK WITH WHITE STRiPE TO NEGATIVE
RIGHT SIDE OF TRANSMITTER
RED–POSITIVE / BROWN–NEGATIVE / ORANGE–SIGNAL
CENTER
PIN IS
NEGATIVE
OUTSIDE IS POSITIVE
CHARGER PIGTAIL FOR RECEIVER
AFTERMARKET PIGTAIL FOR TRANSMITTER
BLACK TO POSITIVE
BLACK WITH WHITE STRiPE TO NEGATIVE
RIGHT SIDE OF TRANSMITTER
RED–POSITIVE / BROWN–NEGATIVE / ORANGE–SIGNAL
SPEKTRUM DX7 • INTRODUCTION
Control Stick Tension Adjustment
Removing the Back of the Transmitter
Remove the battery cover by pressing down on the ridged areas of the cover and sliding the cover towards the
bottom of the transmitter. Unplug the battery and set it aside. Carefully remove the screws from the back of the
transmitter using a small Phillips screwdriver.
Note: Use care when installing the screws securing the back of the transmitter. They are
threading into plastic and can be stripped if over-tightened.
SPEKTRUM DX7 • INTRODUCTION
CHARGING JACK FOR
NiMH BATTERY
BATTERY COVER
TRAINER JACK
CAUTION: THE BATTERY CONNECTOR
IS KEYED SO THAT IT CAN ONLY BE PLUGGED
IN ONE DIRECTION. DO NOT FORCE.

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Adjusting the Control Stick Tension
Note: Remove the six (6) transmitter back cover screws. Remove the transmitter back, being
careful not to cause damage to any components.
Adjust each stick tension screw for the desired tension (counterclockwise to loosen stick tension, clockwise to
tighten stick tension).
LOOSEN
TIGHTEN
SETSCREW
ELEVATOR TENSION
SCREW
THROTTLE TENSION
SCREW
AILERON TENSION
SCREW
RUDDER TENSION
SCREW
RUDDER TENSION
SCREW
AILERON TENSION
SCREW
THROTTLE TENSION
SCREW
ELEVATOR TENSION
SCREW
MODE 2
MODE 1
SPEKTRUM DX7 • INTRODUCTION
Screen Contrast
The screen contrast is adjustable, allowing the user to vary the contrast for improved clarity in all conditions.
To adjust contrast: with the transmitter on and in the main menu, press and hold the select key. Then press the
INCREASE or DECREASE key to lighten or darken the contrast.
MODEL 1
SPEKTRUM DX7 2.4GHz
10.6V
Press to decrease contrast
Press to increase contrast
Press and hold while
changing contrast
Advanced Digital Trims
The DX7 employs digital trim levers on aileron, elevator, throttle and rudder (hover pitch and hover throttle for
helicopters). The ADT (Advanced Digital Trim) feature is designed to automatically store the selected trim values
for each model. When a different model is selected, the previously stored trim positions for that model are
automatically recalled.
When using the helicopter program, each flight mode has its own trim that is automatically recalled each time
that flight mode is entered.
Visual trim positions are displayed on the main screen. The trims feature dual speed scrolling. Holding the trim
lever for an extended time will cause the trim rate of change to increase.
MODEL 1
SPEKTRUM DX7 2.4GHz
10.6V
Rudder trim
Throttle trim
Aileron trim
Elevator trim
SPEKTRUM DX7 • INTRODUCTION
Control Stick Length Adjustment
The DX7 allows you to adjust the control stick’s
length. Use the 2mm Allen wrench (supplied with
your DX7 transmitter) to unlock the setscrew.
Turn the wrench counterclockwise to loosen the
screw. Then, turn the stick clockwise to shorten or
counterclockwise to lengthen. After the control stick
length has been adjusted to suit your flying style,
tighten the 2mm setscrew.

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SPEKTRUM DX7 • INTRODUCTION
Tips on Using 2.4GHz Systems
While your DSM equipped 2.4GHz system is intuitive to operate, functioning nearly identically to 72MHz
systems, following are a few common questions from customers.
1. Q: Which do I turn on rst, the transmitter or the receiver?
A: If the receiver is turned on first (except for the AR500, AR6100 and the AR7100 receivers), all servos except
for the throttle will be driven to their preset failsafe positions set during binding. At this time, the throttle
channel doesn’t put out a pulse position preventing the arming of electronic speed controllers or, in the case
of an engine-powered aircraft, the throttle servo remains in its current position. When the transmitter is then
turned on, the transmitter scans the 2.4GHz band and acquires two open channels. Then the receiver that was
previously bound to the transmitter scans the band and finds the GUID (Globally Unique Identifier code) stored
during binding. The system then connects and operates normally.
Note: When using the AR500, AR6100 or the AR7100, if the receiver is turned on first, no output
pulses are sent to any channels.
If the transmitter is turned on first, the transmitter scans the 2.4GHz band and acquires two open channels. When
the receiver (except forAR500, AR6100 and AR7100 receivers) is then turned on for a short period (the time it
takes to connect), all servos except for the throttle are driven to their preset failsafe positions while the throttle
has no output pulse. The receiver scans the 2.4GHz band looking for the previously stored GUID, and when it
locates the specific GUID code and confirms uncorrupted repeatable packet information, the system connects
and normal operation takes place. Typically this takes 2 to 6 seconds.
2. Q: Sometimes the system takes longer to connect and sometimes it doesn’t connect at all?
A: In order for the system to connect (after the receiver is bound) the receiver must receive a large number of
continuous (one after the other) uninterrupted perfect packets from the transmitter in order to connect. This
process is purposely critical of the environment, ensuring that it’s safe to fly when the system does connect.
If the transmitter is too close to the receiver (less that 4 feet) or if the transmitter is located near metal objects
(metal transmitter case, the bed of a truck, the top of a metal work bench, etc.) connection will take longer, and
in some cases, connection will not occur as the system is receiving reflected 2.4GHz energy from itself and is
interpreting this as unfriendly noise. Moving the system away from metal objects or moving the transmitter away
from the receiver and powering the system up again will cause a connection to occur. This only happens during
the initial connection. Once connected, the system is locked-in and, should a loss of signal occur (failsafe), the
system connects immediately (4ms) when signal is regained.
3. Q: I’ve heard that the DSM system is less tolerant of low voltage. Is that correct?
A: All DSM receivers have an operational voltage range of 3.5 to 9 volts. With most systems, this is not a
problem as most servos cease to operate at around 3.8 volts. When using multiple high current draw servos
with a single or inadequate battery/power source, heavy momentary loads can cause the voltage to dip below
this 3.5-volt threshold, causing the entire system (servos and receiver) to brown out. When the voltage drops
below the low voltage threshold (3.5 volts), the DSM receiver must reboot (go through the start-up process of
scanning the band and finding the transmitter) and this can take several seconds. Please read the receiver power
requirement on page 24 as this explains how to test for and prevent this occurrence.
Tips on Using 2.4GHz Systems (continued)
4. Q: Sometimes my receiver loses its bind and won’t connect, requiring rebinding. What
happens if the bind is lost in ight?
A: The receiver will never lose its bind unless it’s instructed to. It’s important to understand that during the
binding process the receiver not only learns the GUID (code) of the transmitter but the transmitter learns and
stores the type of receiver that it’s bound to. If the bind button on the transmitter is pressed at any time and the
transmitter is turned on, the transmitter looks for the binding protocol signal from a receiver. If no signal is
present, the transmitter no longer has the correct information to connect to a specific receiver and in essence
the transmitter has been “unbound” from the receiver. We’ve had several customers that use transmitter stands
or trays that unknowingly depress the bind button and the system is then turned on, losing the necessary
information to allow the connection to take place. We’ve also had customers that didn’t fully understand the
range test process and pushed the bind button before turning on the transmitter, also causing the system to
“lose its bind.” If, when turning on, the system fails to connect, one of the following has occurred:
• The wrong model has been selected in the model memory (ModelMatch).
• The transmitter is near conductive material (transmitter case, truck bed, etc.) and the reected 2.4GHz energy
is preventing the system from connecting (see #2 above).
• The bind button was unknowingly (or knowingly) depressed and the transmitter was turned on previously,
causing the transmitter to no longer recognize the receiver.
5. Q: Can I use a 3-cell Li-Po pack in my transmitter?
A: No. All current JR and Spektrum transmitters are designed to operate using a 9.6-volt transmitter pack. A fully
charged 3-cell Li-Po pack puts out 12.6 volts. This higher voltage can overload the power-regulating transistor
causing damage and or failure, possibly in flight. Many of our customers have experienced failures using 3-cell
Li-Po packs and their use in JR and Spektrum transmitters is highly advised against. The X9303 2.4 system will
operate for over 15 hours using a 2700mAh Ni-MH battery.
6. Q: How important is it that I test my system using the Spektrum Flight Log?
A: For most sport airplanes and helicopters, the use of the Flight Log is unnecessary. For sophisticated aircraft,
especially those that have significant conductive materials within the airframe (e.g., jets, scale airplanes, etc.),
the Flight Log offers an extra measure of confidence that all radio components are working optimally. The Flight
Log is an important tool that allows the confirmation that the installation (position of the internal and remote
receivers relative to the conductive materials in the aircraft) is optimized and that the RF (radio) link is operating
at the highest levels of performance.

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SPEKTRUM DX7 • INTRODUCTION SPEKTRUM DX7 • INTRODUCTION
Receiver Installation
Install the main receiver using the same method you would use to install a conventional receiver in your aircraft.
Typically, wrap the main receiver in protective foam and fasten it in place using rubber bands or hook and loop
straps. Alternately, in electric models or helicopters, it’s acceptable to use thick double-sided foam tape to fasten
the main receiver in place.
Antenna Polarization
For optimum RF link performance it’s important that the remote antennas be mounted in an orientation that
allows for the best possible signal reception when the aircraft is at all possible attitudes and positions. This
is known as antenna polarization. If two receivers are used, the antennas should be oriented perpendicular
to each other, typically one vertical and one horizontal. This allows the greatest exposed visual cross section
of the antennas from all aircraft orientations. If three antennas are used it is recommended that one antenna
be mounted vertically, one horizontally in-line with the fuselage and one horizontally perpendicular to the
fuselage. This covers the X,Y and Z axis offering superb cross section visibility in all aircraft orientations. An
optional fourth antenna can be added at an intermediate angle offering even greater RF link security and system
redundancy.
Mounting the remote receiver in a slightly different location, even just inches away from the primary receiver,
gives tremendous improvements in path diversity. Essentially, each receiver sees a different RF environment and
this is key to maintaining a solid RF link, even in aircraft that have substantial conductive materials (e.g., larger
gas engines, carbon fiber, pipes, etc.), which can weaken the signal.
Using servo tape, mount the remote receiver keeping the remote antennas at least 2 inches away from the
primary antenna. Ideally, the antennas will be oriented perpendicularly to each other, however, we’ve found this
to not be critical. In airplanes, we’ve found it best to mount the primary receiver in the center of the fuselage on
the servo tray and to mount the remote receiver to the side of the fuselage or in the turtle deck.
SPEKTRUM DX7 • INTRODUCTION
Receiver and Servo Installation
The AR7000 incorporates dual receivers, offering the security of dual path RF redundancy. An internal
receiver is located on the main PC board, while a second external receiver is attached to the main board
with a 6-inch extension. By locating these receivers in slightly different locations in the aircraft, each receiver
is exposed to its own RF environment, greatly improving path diversity (the ability for the receiver to see the
signal in all conditions).
QuickConnect™and Brownout Alert
The remote receivers now included with the AR7000 feature QuickConnect with Brownout Detection. Should
a power interruption occur (brownout), the system will reconnect immediately when power is restored and the
LEDs on each connected receiver will flash indicating a brownout (power interruption) has occurred. Brownouts
can be caused by an inadequate power supply (weak battery or regulator), a loose connector, a bad switch, an
inadequate BEC when using an electronic speed controller, etc. Brownouts occur when the receiver voltage
drops below 3.2 volts thus interrupting control as the servos and receiver require a minimum of 3.2 volts to
operate.
How Brownout Detection Work
When the receiver voltage drops below 3.2 volts the system drops out (ceases to operate). When power is
restored, the receivers will immediately attempt to reconnect to the last two frequencies they were connected to.
If the two frequencies are present (the transmitter was left on) the system reconnects typically in about 4ms. The
receivers will then blink indicating a brownout has occurred. If at any time the receiver is turned off then back on
and the transmitter is not turned off, the receivers will blink as a power interruption was induced by turning off
the power to the receiver. In fact this simple test (turning off then on the receiver) will allow you to determine if
your system’s brownout detection is functioning.
Note: If a brownout occurs in-flight it is vital that the cause of the brownout be determined and
corrected. QuickConnect and Brownout Detection are designed to allow you to safely fly through
most short duration power interruptions. However, the root cause of these interruptions must be
corrected before the next flight to prevent catastrophic safety issues.
External Receiver
6” Extension
Main Receiver

18
19
Servo Installation
In gas- and glow-powered aircraft where vibration is
present, the servos should be mounted using the
supplied rubber grommets and bushings. Do not over-
tighten the mounting screws. The diagram will assist
you in properly mounting the grommets and bushings.
In electric and non-powered aircraft, there are many
acceptable methods for mounting the servo, including
servo tape and even glue. See the information included
with your aircraft for the recommendation for installing
servo(s) in your aircraft.
How to Range Test the DX7
Before each flying session, and especially with a new model, it is important to perform a range check. The DX7
incorporates a range testing system which, when
the bind button on the back of the transmitter
is pressed and held, reduces the output power,
allowing a range check.
Range Testing the DX7
1. With the model resting on the ground, stand 30 paces (approx. 90 feet) away from the model.
2. Face the model with the transmitter
in your normal flying position and
depress and hold the bind button
on the back of the transmitter. This
causes reduced power output from the
transmitter.
3. You should have total control of the
model with the button depressed at 30
paces (90 feet).
4. If control issues exist, call the Product
Support Team at
1-877-504-0233 for further assistance.
90 feet (30 paces)
Servo Lead w/Connector
Servo Arm Retaining Screw
Servo Arm/Horn
Servo Output Shaft
Servo Eyelet
Rubber Grommets
Servo Mounting Flange
Servo Case
Servo Mounting Flange
Rubber Grommets
SPEKTRUM DX7 • INTRODUCTION SPEKTRUM DX7 • INTRODUCTION
Receiver Installation (continued)
In helicopters, there is generally enough room on the servo tray to achieve the necessary separation. If needed a
mount can be fashioned using clear plastic to mount the external receiver.

20
21
Advanced Range Testing Using a Flight Log
While the above Standard Range Testing procedure is recommended for most sport aircraft, for sophisticated
aircraft that contain significant amounts of conductive/reflective materials (e.g., turbine-powered jets, some
types of scale aircraft, aircraft with carbon fuselages, etc.) the following advanced range check will confirm that
all internal and remote receivers are operating optimally and that the installation (position of the receivers) is
optimized for the specific aircraft. This Advanced Range Check allows the RF performance of each individual
internal and remote receiver to be evaluated and the location of each individual remote receiver to be optimized.
Advanced Range Testing the DX7
1. Plug the Flight Log (optional) into the data port in the AR7000 receiver and turn on the system
(transmitter and receiver).
2. Advance the Flight Log until F- frame losses are displayed, by pressing the button on the Flight Log.
3. Have a helper hold your aircraft while observing the Flight Log data.
4. Standing 30 paces away from the model, face the model with the transmitter in your normal flying
position and depress and hold the bind button on the back of the transmitter. This causes reduced
power output from the transmitter.
5. Have your helper position the model in various orientations (nose up, nose down, nose toward the
transmitter, nose away from the transmitter, etc.) while your helper is watching the Flight Log, noting
any correlation between the aircraft’s orientation and Frame Losses. Do this for 1 minute. The timer on
the DX7 can be used here. For giant-scale aircraft, it’s recommended that the airplane be tipped up on
its nose and rotated 360 degrees for one minute, then record the data. Next place the airplane on its
wheels and do a second test, rotating the aircraft in all directions for one minute.
6. After one minute, release the bind button. A successful range check will have recorded zero frame
losses. Scrolling the Flight Log through the Antenna fades (A, B, L, R) will allow you to evaluate the
performance of each receiver. Antenna fades should be relatively uniform. If a specific antenna is
experiencing a high degree of fades, then that antenna should be moved to a different location.
7. A successful Advanced test will yield the following:
H- 0 holds
F- 0 frame losses
A, B, R, L- Antenna fades will typically be less than 100. It’s important to compare the
relative antenna fades and if a particular receiver has significantly higher antenna fades (2
to 3X), then the test should be redone, and if the same results occur, move the offending
receiver to a different location.
Binding
The AR7000 receiver must be bound to the transmitter before it will operate. Binding is the process of teaching
the receiver the specific code of the transmitter so it will connect to that specific transmitter. Once bound, the
receiver will only connect to the transmitter when the previously bound model memory is selected. If another
model memory is selected, the receiver will not connect. This feature is called ModelMatch and prevents flying a
model using the wrong model memory.
SmartSafe™Failsafe
The AR7000 features the SmartSafe failsafe system.
SmartSafe:
• Prevents unintentional electric motor response on start-up.
• Eliminates the possibility of overdriving servos on start-up.
• Establishes low-throttle failsafe if the RF signal is lost.
• Maintains last-commanded control surface position in the event of RF link interruption.
Note: Failsafe positions are stored via the stick and switch positions on the transmitter during
binding.
1. With the system hooked up as shown, insert the bind plug in the charge plug receptacle.
REMOVE BEFORE USE
AR7000
2. Turn on the receiver switch. Note that the LED’s on both receivers should be flashing, indicating that
the receiver is ready to bind.
SPEKTRUM DX7 • INTRODUCTIONSPEKTRUM DX7 • INTRODUCTION

22
23
3. Establish the desired failsafe stick positions: normally low throttle and flight controls neutral.
POWER
4. Press and hold the bind button on the back of the transmitter while turning on the power switch.
The bind button should flash and within a few seconds the system should connect. The LED’s on the
receivers should go solid indicating the system has connected.
$3#
").$2!.'%4%34
5. Remove the bind plug from the receiver and store it in a convenient place.
REMOVE BEFORE USE
6. After you’ve programmed your model, it’s important to rebind the system so the true low throttle and
neutral control surface positions are programmed.
Note: The AR7000 features DSM2 technology and is only compatible with DSM2 transmitters.
The AR7000 will not operate with the DX6 or Spektrum surface systems.
SPEKTRUM DX7 • INTRODUCTION
Flight Log—Optional for AR7000 Receiver
The Flight Log is compatible with AR7000 receivers. The Flight Log displays overall RF link performance as well
as the individual internal and external receiver link data. Additionally it displays receiver voltage.
Using the Flight Log
After a flight and before turning off the receiver or transmitter, plug the Flight Log into the Data port on the
AR7000 receiver. The screen will automatically display voltage e.g., 6v2= 6.2 volts.
Note: When the voltage reaches 4.8 volts or less, the screen will flash indicating low voltage.
Press the button to display the following information:
A - Antenna fades on internal antenna A
B - Antenna fades on internal antenna B
L - Antenna fades on the left external antenna
R - Antenna fades on the right external antenna
F - Frame loss
H - Holds
Antenna fades—represents the loss of a bit of information on that specific antenna.
Typically it’s normal to have as many as 50 to 100 antenna fades during a flight.
If any single antenna experiences over 500 fades in a single flight, the antenna should be repositioned in the
aircraft to optimize the RF link.
Frame loss—represents simultaneous antenna fades on all attached receivers. If the RF link is performing
optimally, frame losses per flight should be less than 20.
A hold occurs when 45 consecutive frame losses occur.
This takes about one second. If a hold occurs during a flight, it’s important to reevaluate the system, moving the
antennas to different locations and/or checking to be sure the transmitter and receivers are all working correctly.
Note: A servo extension can be used to allow the Flight Log to more conveniently be plugged
in without having to remove the aircraft’s hatch or canopy. On some models, the Flight Log can
be plugged in, attached and left on the model using double-sided tape. This is common with
helicopters, mounting the Flight Log conveniently to the side frame.
SPEKTRUM DX7 • INTRODUCTION

24
25
Receiver Power System Requirements
Inadequate power systems that are unable to provide the necessary minimum voltage to the receiver during flight
have become the number one cause of in-flight failures. Some of the power system components that affect the
ability to properly deliver adequate power include:
• Receiver battery pack (number of cells, capacity, cell type, state of charge)
• The ESC’s capability to deliver current to the receiver in electric aircraft
• The switch harness, battery leads, servo leads, regulators etc.
The AR7000 has a minimum operational voltage of 3.5 volts; it is highly recommended the power system be
tested per the guidelines below.
Recommended Power System Test Guidelines
If a questionable power system is being used (e.g. small or old battery, ESC that may not have a BEC that will
support high current draw, etc.), it is recommended that a voltmeter be used to perform the following test.
Note: The Hangar 9 Digital Servo & Rx Current Meter (HAN172) or the Spektrum Flight Log
(SPM9540) are the perfect tools to perform the test below.
Plug the voltmeter into an open channel port in the receiver and with the system on, load the control surfaces
(apply pressure with your hand) while monitoring the voltage at the receiver. The voltage should remain above
4.8 volts even when all servos are heavily loaded.
Note: The latest generations of Nickel-Metal Hydride batteries incorporate a new chemistry
mandated to be more environmentally friendly. These batteries when charged with peak detection
fast chargers have tendencies to false peak (not fully charge) repeatedly. These include all
brands of NiMH batteries. If using NiMH packs, be especially cautious when charging, making
absolutely sure that the battery is fully charged. It is recommended to use a charger that can
display total charge capacity. Note the number of mAh put into a discharged pack to verify it has
been charged to full capacity.
Airplane Quick Start
The following section covers a basic programming for a 4-channel airplane with a single rate. For more details
on programming the aircraft, see the Aircraft section of this manual.
SPEKTRUM DX7 • AIRCRAFT QUICK START GUIDE
Model Type Selection
[TYPE SELECT]
MODEL 1
HELI
◊ACRO
Use to select desired mode
Press to enter
TYPE SELECT
Hold while turning
on the transmitter
Press to accept
model type change
Selecting Airplane Mode
Press the DowN and SELECT keys simultaneously and hold while turning on the transmitter to enter system
setup mode.
Press the UP or DowN button until TYPE SELECT appears on screen.
If ACRO is highlighted on screen, proceed to SERVO REVERSING (page 26).
If HELI is highlighted, press the INCREASE or DECREASE key once and ACRO should be highlighted.
Press the CLEAR key to accept the model type change.
SPEKTRUM DX7 • AIRCRAFT QUICK START GUIDE

26
27
Servo Reversing
[REVERSING SW]
NORM
GEAR
≤
ch 1 2 3 4 5 6 7
REV.
Press to select REV. or NORMPress to enter REVERSE
Press to enter
Function Mode
Press to select
desired channel
To Access Servo Reversing
Turn the power on, press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until REVERSING SW appears on screen.
Press the SELECT key to select the desired channel, then press the INCREASE or DECREASE key to select
reverse or normal servo direction.
Travel Adjust
[TRAVEL ADJUST]
THRO
≥H 100%
L 100%
ELEV
D 100%
U 100%
AILE
L 100%
R 100%
RUDD
L 100%
R 100%
Press to adjust valueSelected channel
Press to enter
TRAVEL ADJUST
Press to enter
Function Mode
Press to return
value to default
Press to select
desired channel
To Access Travel Adjust
Turn the power on and press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until TRAVEL ADJUST appears on screen. Press the select key to move the cursor
arrow to the desired channel.
Use the SELECT key to choose the appropriate channel that you wish to adjust.
While holding the channel or switch in the desired direction, press the INCREASE or DECREASE key to adjust
SPEKTRUM DX7 • AIRCRAFT QUICK START GUIDE
the travel adjust in that direction.
This completes the basic Quick Start setup for your airplane. For additional features like Dual and Expo rates,
Mixing, etc, see the appropriate pages listed in the table of contents.
Note: If your airplane’s ailerons are controlled independently by two servos, see “Wing Type
Selection” on page 44 for specifics on programming flaperons.
Helicopter Quick Start
The following covers a basic 5-channel mechanical mix helicopter with single rate. For more details on
programming for the helicopter mode, see the Helicopter section of this manual.
Model Type Selection
[TYPE SELECT]
MODEL 1
◊HELI
ACRO
Use to select
desired model
Press to enter
TYPE SELECT
Hold while turning
on the transmitter
Selecting Helicopter Mode
Press the DowN and SELECT keys simultaneously and hold while turning on the transmitter to enter system
setup mode.
Press the UP or DowN button until TYPE SELECT appears on screen.
If HELI is highlighted on screen, proceed to SERVO REVERSING (page 28).
If ACRO is highlighted, press the INCREASE or DECREASE key once and heli should be highlighted.
Press the CLEAR key to accept the model type change.
SPEKTRUM DX7 • HELICOPTER QUICK START GUIDE

28
29
Servo Reversing
[REVERSING SW]
NORM
GEAR
≤
ch 1 2 3 4 5 6 7
REV.
Press to select REV. or NORMPress to enter REVERSE
Press to enter
Function Mode
Press to select
desired channel
To Access Servo Reversing
Turn the power on and press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until REVERSING SW appears on screen.
Press the SELECT key to select the desired channel then press the INCREASE or DECREASE key to select
REVERSE or NORMAL servo direction.
Travel Adjust
[TRAVEL ADJUST]
THRO
≥H 100%
L 100%
ELEV
D 100%
U 100%
AILE
L 100%
R 100%
RUDD
L 100%
R 100%
Press to adjust valueSelected channel
Press to enter
TRAVEL ADJUST
Press to enter
Function Mode
Press to return
value to default
Press to select
desired channel
To Access Travel Adjust
Turn the power on and press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until TRAVEL ADJUST appears on screen.
Press the SELECT key to select the desired channel, then press the INCREASE or DECREASE key while
holding the stick or switch in the desired direction that you wish to adjust the servo travel.
SPEKTRUM DX7 • HELICOPTER QUICK START GUIDE
Pitch Curve
Adjusting the Normal Pitch Curve
The DX7 offers four independent pitch curves, each with up to five adjustable points. This function allocates a
separate pitch curve setting during normal, stunt 1, stunt 2 and hold modes. Once the pitch curves are adjusted,
each can be activated in flight using the three-position flight mode and throttle hold switches. Each of the five
points of the pitch curve are independently adjustable from 0–100%. These five points correspond to low, 25%,
mid, 75% and high stick positions. See page 94 for more details on setting up pitch curves.
[PITCH CURVE]
≥Point-3
51 51
INH
1 2 3HL
IN OUT
NORM
Press to change values
Press to enter
PITCH CURVE
Press to enter
Function Mode
Press to select
desired points
To Access the Pitch Curve Function
Turn the power on and press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until PITCH CURVE NORM appears on screen.
Press the SELECT key to select the stick position that you wish to adjust the pitch.
• L= Low
• 1= 25%
• 2= 50%
• 3= 75%
• H= High
Press the INCREASE or DECREASE keys to adjust the pitch value of the selected pitch position.
Recommended Initial Pitch Settings
• L= -4º
• 2= 5º
• H= 9º
Note: For more information about setting up pitch curves, see page 94.
SPEKTRUM DX7 • HELICOPTER QUICK START GUIDE

30
31
Throttle Curve
Adjusting the Normal Throttle Curve
Adjustment of the throttle curves is similar to the pitch curve adjustment described on the preceding page. Three
throttle curves are available: normal, stunt 1 and stunt 2. All throttle curves have five adjustable points—low,
25%, 50%, 75% and high. Flight modes are located on the 3-position flight mode switch. The throttle curve is
in the normal mode when the Flight Mode switch is in the rear position and the Throttle Hold switch is rearward.
[THRO CURVE]
NORM
≥Point-L
51 51
0.0%
1 2 3 HL
IN OUT
Press to change values
Press to enter
THROTTLE CURVE
Press to enter
Function Mode
Press to select
desired points
To Access the Throttle Curve Function
Turn the power on and press the DowN and SELECT keys simultaneously to enter the function mode.
Press the UP or DowN key until THROTTLE CURVE NORM appears on screen.
Press the SELECT key to select the stick position that you wish to adjust the throttle.
• L= Low
• 1= 25%
• 2= 50%
• 3= 75%
• H= High
Press the INCREASE or DECREASE keys to adjust the throttle value of the selected throttle position.
Note: For more information about setting up Throttle Curves see page 92.
This completes the basic Quick Start setup for your helicopter. For additional features like Dual and Expo Rates,
Mixing, etc, see the appropriate pages listed in the table of contents.
SPEKTRUM DX7 • HELICOPTER QUICK START GUIDE
Aircraft Programming Guide
Control Identication and Location - Airplane Mode 2
Throttle ALT
The Throttle ALT function makes the throttle stick trim active only when the throttle stick is at less than half
throttle. This allows accurate idle adjustments without affecting the mid to high throttle position.
Throttle/
Rudder Stick
Antenna
Up/Down
Scroll Button
Select Key
Increase/Decrease
Button
Clear Key
Aileron Trim
Aileron/Elevator
Stick
Rudder Trim
Throttle Trim
Elevator Trim
Aileron
Dual Rate
Mix-Rudder
Dual Rate
AUX 2 Switch
Trainer/Flap
Rocker
Carrying Handle
LCD Display
Flap Mix
Elevator
Dual Rate
Gear Switch
On/Off Switch
Neck Strap
Hook
SPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDE

32
33
Control Identication and Location - Airplane Mode 1
Throttle ALT
The Throttle ALT function makes the throttle stick trim active only when the throttle stick is at less than half
throttle. This allows accurate idle adjustments without affecting the mid to high throttle position.
Elevator/
Rudder Stick
Antenna
Up/Down
Scroll Button
Select Key
Increase/Decrease
Button
Clear Key
Aileron Trim
Aileron/Throttle
Stick
Rudder Trim
Elevator Trim
Throttle Trim
Aileron
Dual Rate
Mix-Rudder
Dual Rate
AUX 2 Switch
Trainer/Flap
Rocker
Carrying Handle
LCD Display
Flap Mix
Elevator
Dual Rate
Gear Switch
On/Off Switch
Neck Strap
Hook
SPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDESPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDE
General Information
MODEL 1
SPEKTRUM DX7 2.4GHz
10.6V
INCREASE and DECREASE keyUP and DOWN key
SELECT key CLEAR key
Key Input and Display Functions
• The UP and DowN keys are used to select the programming function.
• The SELECT key is used to select the channel or feature that you wish to program.
• The INCREASE or DECREASE keys are used to change the values of the selected
programming feature.
The DX7 features two programming modes: System Mode and Function Mode.

34
35
SPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDESPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDE
System Mode Functions
System Mode
[SYSTEM LIST]
ºTRAINER
ºTH RECOV.
ºINPUT SEL.
ºWING TYPE
ºD/R SW
◊MODEL SEL
ºMODEL NAME
ºTYPE SEL.
ºMODEL RES.
UP and DOWN key
Hold while turning on transmitter
To Enter the System List Mode
With the transmitter off, press and hold the DowN and SELECT keys simultaneously while turning the power
switch on to enter the System Mode.
While in the System Mode, press the UP and SELECT keys simultaneously to access the “List” mode.
Use the UP and DowN keys to Scroll through the available function.
Press DowN and SELECT to enter a selected function.
In this mode, servos are not activated.
By pressing the DowN and SELECT keys twice simultaneously, you can return to the main screen.
The list mode screens display all the functions onscreen allowing the access of any function without having to
scroll through each screen. Note that there are two list modes: a System Setup List Mode that displays all the
system setup functions, and a Function List Mode that displays all the system setup functions.
System Setup Mode Flowchart
System Mode includes programming functions that are normally used during setup. System programming
functions for airplanes include:
To Enter the System Setup Mode
• With the power switch off, press and hold the DowN and SELECT keys simultaneously.
• Turn on the power switch.
• The system will display the last screen that was used in system setup mode. You are now in
System Mode.
To Exit the System Setup Mode
• Press the DowN and SELECT keys simultaneously. The main screen will be displayed.
• Turn the transmitter off.
[MODEL NAME]
≥
MODEL 1 ACRO
DSM <EXTRA 300>
[MODEL SELECT]
◊SELECT
MODEL 1
ACRO DSM
[TYPE SELECT]
MODEL 1
HELI
◊ACRO
[TRAINER]
≥INH
[MODEL RESET]
MODEL 1 ACRO DSM
◊DATA RESET
INTEG-T
0:00:34
[D/R SWITCH SEL]
≥INDIVID
[WING TYPE]
≥FLAPERON OFF
DELTA OFF
V-TAIL OFF
[THRO RECOVERY]
INH
[INPUT SELECT]
≥AUX2:2P SW
AUX2 TRIM:INH
FLAP:SYSTEM
FLAP TRIM:ACT
Model Select (page 36)
Model Name (page 38)
Type Select
(page 39)
Model Reset (page 40)
Trainer (page 41)
Dual Rate Select Switch
(page 50)
Wing Type (page 43)
Input Select (page 44)
Throttle Recovery
(page 42)
[MODEL SELECT]
◊SELECT
MODEL 1
ACRO DSM
Hold while turning on transmitter to enter System Mode

36
37
SPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDESPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDE
Model Select/Copy Function
The DX7 features a memory function that stores the programmed data for up to 20 models. Any combination of
up to 20 airplanes and/or helicopters can be stored in memory. A model name feature with up to eight characters
allows each model to be easily identified (see page 38).
[MODEL SELECT]
◊SELECT
MODEL 1
ACRO DSM
INCREASE and DECREASE keyUP and DOWN key
Hold while turning on transmitter
To Enter the Model Select Function
Press the DowN and SELECT keys simultaneously and turn the power switch ON to access the System Setup
Mode. Press the INCREASE or DECREASE key until the MODEL SELECT screen appears.
Press the INCREASE or DECREASE key to select the desired model memory.
ModelMatch
The DX7 features patent pending ModelMatch technology that prevents operating a model using the wrong
memory. This feature can prevent stripped servo gears, broken linkages and even a crash due to trying to
operate/fly a model using the wrong memory.
How ModelMatch Works
Each individual model memory has its own embedded code that is transferred to the receiver during binding.
The receiver actually learns the code for the specific model memory that has been selected during binding and,
when bound, will only operate when that model memory is selected. If a different (non-matching) model memory
is selected, the receiver simply won’t connect. This feature prevents trying to operate/fly a model using the
wrong model memory. The receiver can be re-programmed to operate with any other model memory by simply
re-binding with the transmitter programmed to the desired model memory.
Note: If the receiver is turned on and the matching model memory is not selected, the system
will not connect. Either select the matching model memory or rebind the receiver in the current
model memory to resume operation.
Model Select/Copy Function (continued)
[MODEL SELECT]
MODEL 1 EXTRA 300
ACRO DSM
MODEL 2
ACRO DSM
◊COPY
≥
INCREASE and DECREASE key
Press to select
MODEL SELECT
Hold while turning
on transmitter
Press to enter
COPY screen
Press to copy
selected model
To Enter the Copy Function
Press the DowN and SELECT keys simultaneously and turn the power switch ON to access the
System Setup Mode.
Press the UP or DowN key until Model Select appears on screen.
Press the SELECT button to enter the COPY SCREEN.
Press the INCREASE or DECREASE keys to select the model that you wish to copy the model to.
Press the CLEAR key to copy the model to the selected model memory.
Note: Be aware that the model you copy to will have its memory replaced with the new model’s
memory, and the programming information for the model to be copied to will be erased.

38
39
SPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDESPEKTRUM DX7 • AIRCRAFT PROGRAMMING GUIDE
Model Name
The Model Name function is used to input and assign the model’s name to a specific memory, allowing easy
identification of each model’s program. Each model’s name is displayed on the main screen when that model is
selected. Up to eight characters that include numbers and letters are available.
[MODEL NAME]
MODEL 1 ACRO
DSM <EXTRA 300>
≥
INCREASE and DECREASE key
Press to enter
MODEL NAME
Hold while turning on transmitter
To Enter the Model Name Function
Press the DowN and SELECT keys simultaneously, then turn on the transmitter.
Press the INCREASE or DECREASE key until the MODEL NAME screen appears.
Press the SELECT key to move the cursor to the desired character’s position.
Press the INCREASE or DECREASE key to select the desired character.
Type Select Function
The DX7 features two programming types: Airplane and Helicopter. The DX7 can memorize data for up to 20
models individually and the model type will automatically be stored with each model memory.
[TYPE SELECT]
MODEL 1
HELI
◊ACRO
INCREASE and DECREASE key
Press to enter
TYPE SELECT
Hold while turning on transmitter
To Enter the Type Select Mode
Press the DowN and SELECT keys simultaneously, then turn on the transmitter.
Press the UP key until the TYPE SELECT function appears on screen.
[TYPE SELECT]
YES-> CLEAR KEY
MODEL 1
HELI
◊ACRO
Press the INCREASE and DECREASE key
Accept new model type
To Select a Model Type
Press the INCREASE or DECREASE key to toggle between the heli or acro model types.
To accept the new model type press the CLEAR key. All settings will be set to the factory defaults.