USER MANUAL
Before using this product, check that you have all of thefollowing items. If any items are
missing, please contact dealer.
Liability Declaration
IntroductionContent
Precaution of Safety
Thank you for purchasing HobbyKing.com® HK-7X digital proportional R/C system. This system is extremely
versatile and may be used by beginners and professionals alike. In order for you to make the best use of your
system and to fly safely, please read this manual carefully. If you have any difficulties while using your system,
please contact cs@hobbyking.com
HobbyKing.com
®
has the right to change the product, including the exterior, the functions parameter, and
operating requirements, but no notice.
HobbyKing.com
®
does not provide any guarantee, declaration and promise for special use of any
HobbyKing.com
®
products.
The recommended or text technologies data in the technology introduction for HobbyKing.com
®
only indicates
the test result at that time, but it does not mean HobbyKing.com
®
acknowledges the result in law.
HobbyKing.com
®
will not be responsible for the result made by using any product or circuit, including the
incidental or indirect compensation.
The parameters of HobbyKing.com
®
electronic products will be changed under different conditions. The
products will work only after all the functions parameters are approved by each use intension.
ჀIt requires professional skills and technical knowledge to install and operate R/C model properly. Incorrect
installation and operation will result in severe property loss and personal injuries
ჀHK-7XGHz control system is exclusively designed for civil use of RC models Dont use it in any other flying
machines.
ჀThe governmence for R/C model is different in different place, therefore, please consult your local regulatory body
and follow the rules and regulations to operate legally.
ჀRadio wave transfers almost in straight routine in 2.4GHz, please make sure there is no any obstacle when you
are operating the product. The antenna tube should point at the controlled model to ensure efficient control, and
keep conductive materials away from receiver and transmitter.
ჀIf there is prang, collision, welter and other accidents when operating, please test all the things before next
operating.
ჀAlways keep electrical components away from small children.
ჀStop flying long before your batteries become low on charge. Do not rely on your radio's low battery warning.
systems, intended only as a precaution, to tell you when to recharge. Always check your transmitter and receiver
batteries prior to each flight.
ჀBefore flying, be sure that the frequency you intend to fly with is not in use, and secure any frequency control
device (pin, tag, etc.) for that frequency before turning on your transmitter. It is never possible to fly two or more
models on the same frequency at the same time Even though there are different types of modulationAM FM
PCM only one model may be flown on a single frequency at any one time
ჀWhile you are getting ready to fly, if you place your transmitter on the ground, be sure that the wind wont tip it
over. If it is knocked over, the throttle stick may be accidentally moved, causing the engine to speed up. Also,
damage to your transmitter may occur.
ჀBefore taxiing, be sure to extend the transmitter antenna to its full length. A collapsed antenna will reduce your
flying range and cause a loss of control. It is a good idea to avoid pointing the transmitter antenna directly at the
model, since the signal is weakest in that direction.
ჀDont fly in the rain! Water or moisture may enter the transmitter through the antenna or stick openings and cause
erratic operation or loss of control. If you must fly in wet weather during a contest, be sure to cover your
transmitter with a plastic bag or waterproof barrier. Never fly if lightning is expected.
1 2
Thereceiverhasbeenplugged
bindline
Bindbuttonon the back of
transmitter
Bindbuttonof
transmitter
Part 1 HK-7X 2.4GHz Remote Controller System
HK-7X 2.4GHz REMOTE CONTROLLER SYSTEM UNITS ADVANCED ELECTRONICDEVICE, AND
FEATURES WIDE USE. It can support multi-users and multi-equipmensimultaneously, and features
quick response, high precision, and strong capability for antijamming.
HK-7X 2.4GHz R/C system supports one transmitter and several receivers, and makes ipossible that
single radio can control several models simultaneously.
HK-7X 2.4GHz R/C system supports different brand gyro.
HK-7X 2.4GHz R/C system reacts quickly and precisely.
1.Mounting of Receiver
Installation position shall follow these conditions:
1.Keep the receiver away from engine, motor, ESC, battery, and other metal parts.
2.The antenna can not be covered by metal, carbon material or the other electronic conduction
material.
Keep the antenna in 90 degrees with installed frame or bottom plate, it means that try to keep the
antenna visible, see the graph below:
2.Connect Devices to Receiver
Connecting all devices and parts to the corresponding channels. Take notice of 3P signal wire must be
connected in right way, or it will cause the severe damage to certain device or fail to work. There are
some corresponding symbols of 3P on one side of the receiver:
(-) means cathode of power connected to the earth, usually links to the black line or brown line of 3P
signal wire
(+) means the anode of power, usually links to the red wire of 3P singal wires.
(s) means signal wire, usually links to the white or yellow wire of 3P singal wires.Notice:please assess
the power demand of the receiver of model when selecting the electricity supply style, ensure the
receiver can get enough power supply when using, the voltage of the receiver not less than 4.2V at any
time.
3.Binding Transmitter and Receiver
Before using the 2.4GHz remote controller system, you must bind the transmitter and the receiver.
Binding them as following steps:
1) Power on receiver by plugging the ESC line, then plug the 'BIND line' into the 'BIND' slot of receiver.
Then the LED of receiver will flash three times per second. Then you can remove the "BIND" line'.
2) Hold the 'BIND button' of transmitter, then turn it (keep holding), the RF LED of transmitter will flash
fast.
3) After about half second, binding will finish, the LED of receiver will shine twice slowly, then enter
working mode.
4) Release the 'BIND button' of transmitter, the RF LED will keep light, which indicates it is in working
mode.on
Notice:
1)HK-7X 2.4GHz remote controller system sustain multiple receivers operation and long-distance
scaning, so please make sure there's only your radio scaning. If there is any person who also use
HK-7X 2.4GHz remote controller system at local, please operate only after other users pare the
signal.
HK-7X supports seven models saving in one transmitter, they are numbering as n1 to n7. The binding
will save the serial number in receiver. So if you bind one receiver with n1, it can only work when the
transmitter is switched to n1.
4.Control Distance
All remote equipment has an effective range. It's not the same on the ground, and on the water surface
or in the sky; It's not the same on flat ground and complex land; It's not the same in rainy days and in
sunny days; And besides, the external electrical environment is changing continuously. It's quite
necessary for the users who want to control at a long distance to test effective distance
beforehand.Radio wave transfers almost in a straight line, please make sure there is no object between
antenna and the controlled model. And the antenna should point at receiver's antenna, and keep the
controlled model in certain distance where the model can be seen.controller system
3 4
Part2 Transmitter Manual
1 Features
1᧪LED display which shows model type and battery voltage on normal status.
2᧪7 models parameters store supported.
3᧪Support 5 points throttle(THR) curve in NORMAL mode and IDLE mode.
4᧪Support 5 points pitch(PIT) curve in NORMAL mode, IDLE mode and HOLD mode.
5᧪Support HELI(helicopter) mode and AERO mode. Following modes are supported in each mode:
6．7 channels standard servo signal output.
7．Set reverse (REV), sub trim (SUB) and travel by LED and button.
8．Dual rate (DR) control supported.
9．Throttle hold supported.
10．Gyro sensitivity adjusting supported.
11．Return to battery voltage display after no operation till 30 seconds.
12．Beep when battery voltage is low (gate voltage can be set).
13．Beep when throttle is not in zero when power on.
14．Down timer relate to throttle.
2 Transmitter Panel
5
it is used to control dual rate ofaileron,elevator and
rudder.
In AERO mode, it controls channel .
In HELI mode, it controls channel7.
See section-7
See section- .10
There are three items "S1", "S2", "S3" and "S4".
S1. Model choice
Support seven models, see Section-10
S3. Stick type choice
S4. Low voltage gate Set the voltage gate of low battery warning
In HELI mode, it is used to switch NORMAL mode
and IDLE mode. In AERO mode, it controls
channel6.
Tighten the screw when finishing adusting.
and
2 Transmitter Panel
3 Batteries C arging
4. Stic d usting
System Setting
7
will not
at the same time
at the same time
from
be
The sensitivity value can be set from -100 +100. When it is greater than , the gyro is in headlock mode, when the value is lesser thanorequal to , the gyro is in non lock mode. The default
value isG G .
1 11
.4 Dual Rate Setting
. T rottle Holding Setting
. Gyro Sensitivity d usting
.7 T rottle Curve Setting
are are
at the same time
are
the same time
from
12 13
.7 T rottle Curve Setting Signal and Curve
. S as Mi ture Setting
. Pitc Curve Setting
When in HELI mode, the GEAR switch controls channel 7, and the AUX channel. There are two
items in AUX channel setting, A1 and A2, control the signal of AUX channel when GEAR switch
in differentposition.
To enter this setting, turn on transmitter, then press UP and DN at the same time ten times, you
will see "A1xxx likeCHART 4.
CHART14 - AUX channel
Press UP or DN will change setting from A1 to A2.
Press INCorDECwill increase or decrease the value of the position.
15
1
means
the first model
VP is V-tail mode. In this mode, the LED will display like CHART1 :
means
the first model
CHART16 - V-tail mode
The channels and switches are the AERO modeseeTABLE
There are six settings in V-tail mode. To enter setting, press UP and DN at the same time for
special times, and five operations beyond is same as in HELI mode. See TABLE for details.
Youcan press INC and DEC at thesame time to exit setting and return to using mode.
TABLE - V-tail settings
U means
V tail mode
V-tail mixture
See section- .
There are six settings in V-tail mode. To enter setting, press UP and DN at the sametime special
times, and five operations beyond are the same as in HELI mode. See TABLE for details. You
can press INC and DEC at the same time to exit setting and return to using mode.
.1 u c annel setting
7. ero Mode
-tail Mode
14 1
means
the first model
CHART1 - V-tail mi t e ettin
CHART1 - elta in mode
CHART1 - elta in mi t e ettin
CHART - odel itch
at the sametime
from
The channels and switches are the same as AERO mode, see TABLE .
1 Models S itc
.1 Delta ing Mi ture Setting
.1 -Tail Mi ture Setting
Delta ing Mode
HK-7X can support seven models, each model can has its own parameters. To switch among the
five models, you should hold UP and DN , then turn on transmitter, then press INC till "S1 xx" is
shown like CHART20.
Press INC or DEC will switch from n1 to n7 which indicates each seven model. When some model
is selected, press UP and DN at the same time to return to normal using mode. Now the transmitter
will load the parameters of your selection and all your settings will be saved into the model you
selected.
1 17
CHART21 - Throttle warning
CHART23 - Down timer
CHART22 - Idle warning
CHART24NCP setting
CHART 25 – PPM status
11 Throttle warning
12 Idle warning
13 Down timer
14 No Control Protection
15 Using PPM signal
16 Changing Transmit Frequency
HK-7X 7CH supports throttle warning. If the throttle stick not is in the lowest position when power on, the
transmitter will block in warning status. You will see "THro" in panel and hear continuously beep till you
move the stick to the lowest position.
HK-7X 7CH supports Idle warning. If the Idle switch on when power on, the transmitter will block in
warning status. You will see “IdLE” in panel and hear continuously beep till you switch Idle to off.
HK-7X 7CH has a down timer relate to throttle.When in normal using status, press DEC and DN at the
same time to enter down timer. The default value is five minutes,like CHART22. You can press INC or
DEC to change the value.When you push throttle stick up, the timer will run from the value you set to
zero. After minutes remaining, the transmitter will beep to notify you.
HK-7X 7CH remote controller system supports ‘No Control Protection’ function. You can predefine a set of
values for each channel. The receiver will use these values if it lose the signal from transmitter.To set the
values, please do as following steps:
1. Turn on the transmitter and receiver, bind them.
2. Adjust the transmitter, make all channels to the position as you perfer.
3. Press ‘UP' and ‘INC’ at the same time, the screen of transmitter willdisplay ‘NCP’ like Chart 24, and the
RF led shines, at the same time, the led of receiver will go out.
4. After 1 second, the transmitter and the receiver will restore to normal status, the define of ‘NCP' is done.
HK-7X 7CH is a digital device, it also has a signal output slot on the bottom. But in common using, the
output signal is PCM format. If you are using a flying simulator on your computer, the simulator
software can not work with HK-7X PCM signal. So you must switch the signal to PPM by following
steps:1.Set the model to the type you perfer, for simulator using, it should be set to AP normally.2.Turn
off the transmitter, then Hold 'INC' and 'DEC' , and turn on it.3.You will see the screen shows 'PP
XX.XV' like chart 25.4.The transmitter switches to PPM status now, and the signal from the slot is
standard PPM format, you could connect it with simulator adapter.
Notice: when the transmitter in PPM status, the RF module stops working and RF led will off, then the
receiver will lost signal if it was on.
Electric interference may exist when using remote controller system, if it interferes with the frequency
of your remote controller system, your devices will be out of control. Under these circumstances, you
can try to change the transmit frequency by following steps to keep away from it:
1. Turn off receiver, turn on transmitter.
2. Hold the bind button of transmitter until the RF led shines once a second.
3. Release the bind button, then press bind button again instantly, RF led will shine for 1 second.
Turn off the transmitter, frequency changing is completed.
Notice:
1. You must turn on the transmitter again after frequency changing.
2. The new frequency is selected randomly, if the interfere still exists, you can try to change it again
until the interference disappear.
3. After the frequency changing, all the receiver bindings with this transmitter should be rebinded
again.
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