USM-GT3X DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM This product is suitable for 15 years old and above 15 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X Special symbols Please pay attention to the following symbols when they appear in the manual and read carefully. Not following these instructions may expose the user to serious injuries or death. Not following these instructions may expose the user to serious injuries. Not following these instructions may expose the user to minor injuries and even to serious injuries. Prohibited Safety guide Do not fly at night or in bad weather like rain or thunderstorm as this can cause erratic operation or loss of control. Make sure moving direction of all motors be same with the operating direction. If not, please adjust direction first. The shutdown sequence must be to first disconnect the receiver battery then to switch off the transmitter, if the transmitter is switched off while the receiver is still powered, it may lead to uncontrolled movement or engine start and may cause an accident. The 2.4G R/C system will affect the plane or the car nearby after you turn on the transmitter. 2.4 GHz RC 2 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X Do not operate outdoors on rainy days, run through puddles of water or use when visibility is limited. Should any type of moisture (water or snow) enter any component of the system, erratic operation and loss of control may occur.
() Do not operate in the following places:
Near other sites where other radio control activity may occur, Near people or roads, On any pond when passenger boats are present, Near high tension power lines or communication broadcasting antennas, Interference could cause loss of control, Improper installation of your Radio Control System in your model could result in serious injury. Do not operate this R/C system when you are tired, not feeling well or under the influence of alcohol or drugs.Your judgment is impaired and could result in a dangerous situation that may cause serious injury to yourself as well as others. R / C Do not touch the engine, motor, speed control or any part of the model that will generate heat while the model is operating or immediately after its use.These parts may be very hot and can cause serious burns. Please have an overall check about the model before any operation. Any problem in radio control system or improper installation may cause out of control. Simple distance test methods:
One hold the model, and the other one carry the transmitter to a proper place to check the servo system condition. Please stop operation if any exceptional case occurs. Please check the model memory to make sure the matching is right. Turn on the power, please check if the throttle neutral position is in its lowest position while turning on the transmitter every time.When making adjustments to the model, do so with the engine not running or the motor disconnected, you may unexpectedly lose control and create a dangerous situation. 3 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X System Characteristic This radio system works in the frequency range of 2.405 to 2.475GHz. This band has been divided into 142 independent channels. Each radio system uses 16 different channels and 160 different types of hopping algorithm. By using various switch-on times, hopping scheme and channel frequencies, the system can guarantee a jamming free radio transmission. 2.4052.475GHz14216 160
This radio system uses a high gain and high quality multi directional antenna. It covers the whole frequency band. Associated with a high sensitivity receiver, this radio system guarantees a jamming free long range radio transmission. Each transmitter has a unique ID. When binding with a receiver, the receiver saves that unique ID and can accepts only data from that unique transmitter. This avoids picking another transmitter signal and dramatically increases interference immunity and safety. ID IDID
This radio system uses low power electronic components and a very sensitive receiver chip. The RF modulation uses intermittent signal transmission thus reducing even more power consumption. Comparatively, this radio system uses only a tenth of the power of a standard FM system. FM
This system uses the two-way communication, which could control the working state of current model better and make the operation more enjoyable and safer than before. 4 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X TRANSMITTER 1 5 6 7 2 3 4 1 5 2 3 CH3 4 6 Ch3 TRIM 7 A A 6 5 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X A E B F G D C H I A F LCD B BACK C D END E ENTER(DOWN/UP) ST TRIM(RIGHT) G ST TRIM(LEFT) H TH TRIM(UP) I TH TRIM(DOWN) 6 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X Operation instruction Receiver and servo connections ESC ON/OFF SWITCH
: , Note: To ensure good remote control distance, please set the receivers antenna on the vehicle vertically and away from metal objects. Receiver Connector instruction CH1-CH6 BAT CH1-CH6: represents corresponding channels. BAT: represents the binding channel and power supply channel. 6 7 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X USM-GT3X Transmitter specifications Transmitter specifications:
Number of channels: 3 Channel resolution: 1024 steps Power supply: 6V (1.5 V AA x 4) Low voltage warning: <4.2. Red LED will flash 4.2-4.5V Red 4.6-5V Orange 5-6V Green
<3.2 V Buzzer goes off to alarm 2.4 GHz type: AFHDS. Antenna length: 26mm*2dual antenna ) Color: Black Size: 174*89*190mm Weight: 335g Certification: CEFCC 1. 3 2. : 1024 3. : 6V (1.5 V AA x 4) 4. 4.2V LED 4.2-4.5V 4.6-5V 5-6V , 3.2V 5.2.4G AFHDS 6. : 26*2(
7. :
8. : 174*89*190 9 . : 335 10. : CEFCC Receiver specifications MODEL: FS-A3 SPECIFICATIONS Number of channels: 3 RF receiver sensitivity: -105dBm;
Modulation : GFSK System type: AFHDS Channel resolution: 1024 steps Bind port: yes Power port: yes(VCC) Power: 4.0-6.5VDC Weight: 13g Antenna length: 26mm Size: 45*23*9 mm Color: transparent grey Certification: CEFCC. 7 8 1. 6 2. -105dBm 3. : GFSK 4. :
5. : 1024 6. :
7. : (VCC) 8. : 4.0-6.5V DC 9. : 13 10. : 26 11. : 45*23*9 12. :
13. : CEFCC DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X Binding The supplied transmitter and receiver are already bound at production time. If you are using another transmitter or receiver, you need to bind them before use :
1. Install batteries in the transmitter and turn it off. 2. Connect the binding jumper cable to the battery port on the receiver. 3. Connect the battery of the receiver to any channel on the receiver. The red LED on the receiver will blink, indicating it is in binding mode. 4. Press and hold the bind key on the transmitter and turn it on. 5. The red LED of the receiver will stop blinking, indicating the binding process is completed 6. Disconnect the receiver battery. 7. Turn off and turn on the transmitter. 8. Connect all the servos to the receiver and connect its battery. 9. Check if all servos are working properly. 10. If anything is not working as expected, restart this procedure from the beginning. 1. 2. 3. 4. 5. 6. 7. 8. , 9. 10. , Note: If transmitter or receiver enters into binding state by operation mistake, the transmitter or receiver will not function properly. Restarting the transmitter can return to normal, if not, you will need to rebind the transmitter and receiver again.
, Bind Key 6 Binding jumper cable 9 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X LCD FUNCTION EXPLANATION LCD DISPLAY BUTTON FUNCTION:
Turn the ENTER button counterclockwise: decrease the rate Turn the ENTER button clockwise: increase the rate Press ENTER button: select the menu Press BACK button: return to the menu Press END button: end programming
:
END OPENING SCREEN Show current model number and user name Turn the ENTER button, the screen will show the current battery voltage and selected model number MODEL When the battery voltage is lower than 4. 2V, the screen will start blinking along with a buzzer sound warning. 4.2V 10 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X MODEL Function :
The radio system has the ability to store ten model memories (USM0-USM9), each model memory can be setup individually to match up with different models. Parameter:
The initial model No. is Model 1". USM is for the name of model. Operation:
Press the ENTER button and turn to the MODEL menu. Press the ENTER button to enter the MODEL menu. There are a total of 10 model memories from 0-9. Select the model by turning the ENTER button, then press the "ENTER" button to save and return to the menu screen. Press the BACK button and return to the initial menu at any condition. USM-GT3X10USM0-USM9, MODEL :MODEL 1 ACBUSM model 8100-9 6 11 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X SUB-T Function:
This function allows the user to sub trim the steering "ST", throttle "TH", or auxillary "AUX" channels. Parameter:
CHANNEL: channel number, from ST channel to AUX channel 3 00%; AUX CH3, -100%--00%--100%,00%
ST positive percentage the range of adjustment factory setting R L 00%-100%
-100%-00%
00%
00%
TH positive percentage the range of adjustment factory setting F B 00%-100%
-100%-00%
00%
00%
UX positive and negative percentage the range of adjustment factory setting Ch3 trim
-100-00%-100%
00%
Operation:
Press the "ENTER" button and turn to the SUB-T menu. Press the ENTER button to enter the SUB-T menu. You now have the option of adjusting "ST", "TH", or "AUX" by turning the ENTER button. Press the "END" button to select desired channel, turn the ENTER button to make adjustments to channel trim, press the "END" button to finish the setting. The rest can be done in the same way. After finishing the setting of these channels, press the " ENTER" button to save and return to the menu screen. Press the BACK button and return to the initial menu at any condition. SUB-T STSTAUXEND
-100%--00%--100%END ST 0123456789
. 12 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X REV Function:
This function reverses the operating direction of the channels: steering, throttle, and channel 3. Parameter:
CHANNEL: channel number, ST, TH, AUX REV: reverse NOR: normal Operation:
Press the "ENTER" button and turn to the REV menu. Press the ENTER button to enter the REVmenu. The channel function will be blinking. Select the channel by turning the "ENTER" button. Then press the "END" button (now the "REV" or " NOR" will be blinking). Turn the "ENTER" button to select "REV" or "NOR". After this, press the "END" button to finish the setting. The rest can be done in the same way. After finishing the setting of these channels press the "ENTER" button to save and return to the menu screen. Press the "Back" button to return to the opening screen. CHANNELSTAUX NOR: NOR REV STSTAUX"
)""
6 13 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X NAME Function:
This function allows you to assign a user name (three characters) to each model memory. Parameter:
MODEL NO: Model number. USM: User name Operation:
Press the ENTER button and turn to the NAME menu. Press the ENTER button to enter the NAME menu. The first letter will be blinking. Turn the ENTER button to select letter. Press the END button to move between the three letters. Press the ENTER button to save and return to the menu screen. Press the "Back" button to return to the opening screen. 01234567 89 . MODEL NO:
ACB U 14 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X CRAW Function:
This function allows the usage of 4 wheel steering for specifically for crawling or other vehicles that require mixing. Parameter:
There are 4 different modes to control the composition of the direction. Model A: channel 1 control Model A direction. Model B: channel 1 control Model B direction, reversed control. Model C: channel 1 control Model A direction, channel 3 control model B direction, channel 3 replicates channel 1 data. Model D: channel 1 control Model A, channel 3 control model B, channel 3 replicates channel 1 data in reverse. Operation:
Press the "ENTER" button and turn to the CRAWmenu. Press ENTER button to enter the CRAW menu. Turn the "ENTER" button to select desired mode A, B, C, or D. Press the ENTER button to save and return to the menu screen. Press the "Back" button to return to the opening screen. 4 MODEL A1MODEL A MODEL B1MODEL B MODEL C1MODEL A3MODEL B31 MODEL D1MODEL A3MODEL B31.
: CRAW A MODEL AMODEL D 6 15 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X TRIM ST Function:
Use this function to adjust the neutral position of the steering, throttle and AUX channel. Parameter:
CHANNEL: channel number, from ST to AUX ST. RBU: steering or 3rd channel right side , adjustment range: 00%--100% ( initial value is 00% ) ST. LFU: steering or 3rd channel right side, adjustment range: 00%--100% ( initial value is 00% ) TH. LFU : throttle forward side, adjustment range: 00%--100% ( initial value is 00% ) TH.RBU: throttle backward side , adjustment range : 00%--100% ( initial value is 00% ) Operation:
Press the " ENTER" button and turn to the TRIM menu. Press the ENTER button to enter the TRIM menu. The selected channel will be blinking. Select the channel by turning the "ENTER"
button, and then press the "END" button (now the percentage will be blinking). Turn the "ENTER"
button to adjust the rate. After this, press the "END" button to finish the setting. The rest can be done in the same way. Press the "ENTER" button to save and return to menu screen. Press the "BACK"
button to return to the opening screen. CHANNELSTAUX ST. RBU, 00%--100%,00%;
ST. LFU, 00%--100%,00%;
TH. LFU, 00%--100%,00%;
TH. RBU, 00%--100%,00%;
AUX. RBUCH3, 00%--100%,00%;
AUX. LFUCH3, 00%--100%,00%;
TRIMST STAUXEND 00%--100%ENDST 16 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X ALB Function:
while applying the brakes, locking them up can be easily done. which can cause your vehicle to spin out of control, this can be eliminated by pulsing the brakes, so that full control of your vehicle can be achieve at all times. The effect as like that of a A.B.S in a real passenger car. Parameter:
CHANNEL: channel number, its only available in channel 2:
OFF: A. B. S. function is OFF:
Operation:
Press the ENTER button and turn to the ALB menu. Press the ENTER button to enter the ALB menu. The selected function will be blinking. Turn the ENTER button to change the setting. Press the ENTER button to save and return to menu screen. Press the BACK button to return to the opening screen. CHANNEL:;
OFF:ABSOFF);
ON: ABS
:
"",""ABS OFF-ON-OFF
"".
"". 6 17 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X EXP Function:
This function is used to change the sensitivity of the 2 channels around the neutral position. In order to soften or make aggressive the response, according to user 's demand. Parameter:
CHANNEL: channel number, from ST and TH;
100%: steering EXP rate, when you want aggressive steering operation, turn the button to increase the rate. When you want to make steering operation less aggressive, turn the button to decrease the rate. adjustment range: -100%~0~+100% ( initial value is 0 ) Operation:
Press the ENTER button and turn the EXP menu. Press the ENTER button to enter the EXP menu. The selected channel will be blinking. Select the channel by turning the ENTER button and then press the END button (now the percentage will be blinking ). Turn the ENTER button to adjust the rate. After this, press the END button to finish the setting. The rest can be done in the same way. Press the ENTER button to save and return to the menu screen. Press the BACK button to return to the opening screen. CHANNEL:STTH.100%:,-100%,
;
100%,,EXP:-100%100%(0%
EXP ST ""STAUX," END",
,""-100%100%."END".
"".
"". 18 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X EPA Function:
Use this function when performing left and right steering angle adjustments, throttle high side/brake side amount adjustment, and channel 3 servos up side/down side operation amount adjustment during linkage setup. Used to correct steering angle of adjusting left and right steering angles when there is a difference in the left and right turning radios. Parameter:
CHANNEL: channel number, from St to AUX 100%:output value. Adjustment range : 0~120% ( initial value is 100% )
: LEFT, FORWORD, or RIGHT, BACK ( select by steering wheel or throttle trigger ) Operation:
Press the "ENTER" button and turn to the EPA menu. Press the ENTER button to enter the EPA menu. The selected channel will be blinking. Select the channel by turning the "ENTER" button, and then press the "END" button (now the percentage will be blinking ). Select the icon by using the steering wheel, throttle or CH 3 button. Turn the "ENTER" button to adjust the rate. After this, press the "END" button to finish the setting. The rest can be done in the same way. Press the "ENTER"
button to save and return to the menu screen. Press the "BACK" button to return to the opening screen.
:STAUX 100%0%120%100%
:
:
EPA STSTAUX"
0-120%
6 19 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X D/R Function:
By setting the dual rates function, you can limit the total travel of each individual Channel. Parameter:
CHANNEL: channel number, channel ST 100%:Dual Rate, when you want to increase the servo travel, turn the button to increase the rate. when you want to decrease the servo travel, turn the button to decrease the rate.0% is no signal output ,100% is maximum signal output. Adjustment range: 0~100% (initial value is 100%) Operation:
Press the ENTER button and turn to the D/R menu. Press the ENTER button to enter the D/R menu. The selected function will be blinking. Turn the ENTER button to adjust the rate. Press the ENTER button to save and return to the menu screen. Press the BACK button to return to the opening screen. ST),
,.
:
CHANNEL ST 100%:,,(0%100%,;100%),0%, 100%,. D/R 00%--100%
20 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X FAIL SAFE FUNCTION E Function:
Failsafe aims to prevent control loss during operation due to radio control signal loss between transmitter and receiver. If the receiver is not able to receive any signal from the transmitter, the throttle setting on the receiver will default back to its original setting. Setting:
1. Turn on the transmitter. 2. Connect power on the 3. Adjust transmitters throttle to the stop or break position, then keep still. 4. Press the Setting button on the receiver (shown on the picture above), the LED will start flashing for 3 seconds and then stop, indicating the fail safe setting is completed. r, the LED on the will turn solid. receiver receive Testing:
a. Turn on the transmitter. b. Connect power on the receiver. c. Turn off the transmitter:
d. The throttle servo will turn back to its original setting automatically. 1. 2. 1. 2. 3. 4. 3. a. b.. c. d. 6 21 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM GT3X Packaging content 3 channel 2.4G transmitter (USM-GT3X) 3 2.4G(USM-GT3X) 3 channel 2.4G receiver (FS-A3) 3 2.4G(FS-A3) User manual 1 2 3 1 1 1 FCC Statement FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or televison reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help. To assure continued compliance, any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate this equipment. (Example use only shielded interface cables when connecting to computer or peripheral devices). This equipment complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter Caution!
The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user authority to operate the equipment. 6 22 DIGITAL PROPORTIONAL RADIO CONTROL SYSTEM