Spektrum STX3 User Manual

NOTICE

All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, LLC. For up-to-date product literature, visit horizonhobby.com or towerhobbies.com and click on the support or resources tab for this product.

Meaning of Special Language

The following terms are used throughout the product literature to indicate various levels of potential harm when operating this product: WARNING: Procedures, which if not properly followed, create the probability of property damage, collateral damage, and

serious injury OR create a high probability of superficial injury. CAUTION: Procedures, which if not properly followed, create the probability of physical property damage AND a possibility

of serious injury. NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage AND a little or no

possibility of injury.

WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product, personal property and cause serious injury.

This is a sophisticated hobby product. It must be operated with caution and common sense and requires some basic mechanical ability. Failure to operate this Product in a safe and responsible manner could result in injury or damage to the product or other property. This product is not intended for use by children without direct adult supervision. Do not attempt disassembly, use with Incompatible components or augment product in any way without the approval of Horizon Hobby, LLC. This manual contains instructions for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or serious injury.

WARNING AGAINST COUNTERFEIT PRODUCTS: Always purchase from a Horizon Hobby, LLC authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, LLC disclaims all support and warranty with regards, but not limited

to, compatibility and performance of counterfeit products or products claiming compatibility with DSM or Spektrum technology.

Age Recommendation: Not for Children under 14 years. This is not a toy.

NOTICE: This product is only intended for use with unmanned, hobby-grade, remote-controlled vehicles. Horizon Hobby

disclaims all liability outside of the intended purpose and will not provide warranty service related thereto.

WARRANTY REGISTRATION

Visit www.spektrumrc.com/registration today to register your product.

SAFETY PRECAUTIONS

• Always ensure all batteries have been properly charged prior to using the model.

• Always check all servos and their connections prior to each run.

• Never operate your model near spectators, parking areas or any other area that could result in injury to people or damage of property.

• Never operate your model during adverse weather conditions. Poor visibility can cause disorientation and loss of control of your model.

• Never point the transmitter antenna directly toward the

• If at any time during the operation of your model you

WATER-RESISTANT COMPONENT

Your new SRX300 Receiver has a special water-resistant coating on the electronics to ensure reliable performance in higher than average moisture conditions. This conformal coating can offer mild protection from light drops of water.

• DO NOT submerge this product under water for any period

of time. If it is submerged, it may result in damage or loss of function.

• DO NOT pour water onto or allow excess water to come in

direct contact with the product.

• DO NOT operate this product in heavy rain or snow.

• DO NOT expose this product to salt water (ocean water or

In case of excess exposure to water or debris, immediately wipe down the SRX300 with a soft cloth, and allow it to fully dry before next use.

NOTICE: Never use a pressure washer to clean your vehicle. NOTICE: Make sure the other components in your vehicle are

waterproof or water-resistant before driving in wet conditions.

model. The radiation pattern from the tip of the antenna is inherently low.

observe any erratic or abnormal operation, immediately stop operation of your model until the cause of the problem has been ascertained and corrected.

water on salt-covered roads), contaminated or polluted water.

1SPEKTRUM STX3 USER GUIDE

INSTALLING THE TRANSMITTER BATTERIES

This transmitter requires 4 AA batteries.

1. Remove the battery cover from the transmitter.

2. Install the batteries as shown.

3. Install the battery cover.

CAUTION: If using rechargeable batteries, charge only rechargeable batteries. Charging non-rechargeable batteries may cause the batteries to burst, resulting in injury to persons and/or damage to property.

CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to national regulations.

TRANSMITTER FUNCTIONS

A. Servo Reversing

To reverse the Throttle (TH) or Steering (ST) channel, switch the position of the correlating switch—“N” is for normal, “R” is for reverse.

B. Throttle Trim

Adjusts the throttle neutral point

C. Steering Trim

Adjusts the steering center point. Normally, the steering trim is adjusted until the vehicle tracks straight.

D. Throttle Rate

Adjusts the end point of the throttle

E. Steering Rate

Adjusts the end point of the steering

F. Indicator Lights

• Solid red lights: Indicates radio connectivity and

adequate battery power

• Flashing red lights: Indicates the battery voltage is

critically low. Replace batteries

G. Throttle Limit

Limits throttle output to 50/75/100% Select 50% or 75% for less experienced drivers or when you are driving the vehicle in a small area.

H. Antenna I. Power Button J. Throttle/Brake K. Steering Wheel L. Channel 3 Buttons: Top and Bottom

Top

Bottom

2.4GHZ DIGITAL RADIO SYSTEM

SRX300 RECEIVER

Speciﬁ cations

Type: FHSS 2.4GHz protocol Dimensions (LxWxH): 35.8 x 23.6 x 14.3 mm) Antenna Length: 8.27 in Channels: 3 Weight: 8.8g Band: 2.4GHz Voltage Range: 3.5–9.6V

2 SPEKTRUM STX3 USER GUIDE

BINDING

Binding is the process of programming the receiver to recognize the GUID (Globally Unique Identiﬁ er) code of a single speciﬁ c transmitter. The STX3™ transmitter and SPMSRX300 receiver are bound at the factory. If you need to rebind, follow the instructions below.

1. Insert the bind plug in the BIND port on the receiver.

2. Connect a fully charged battery pack to the ESC.

3. Power on the ESC. The red receiver LED flashes, indicating the receiver is in bind mode.

4. Center the ST TRIM and TH TRIM dials on the transmitter.

5. Turn and hold the steering wheel fully right, then power the transmitter on.

6. When the receiver LED stops flashing, release the steering wheel.

7. Remove the bind plug, then power off the receiver to save the settings.

8. Power off the transmitter.

9. Store the bind plug in a convenient place.

You must rebind when:

• Different failsafe positions are desired e.g., when throttle or steering reversing has been changed.

• Binding the receiver to a different transmitter.

MULTIFUNCTION PROGRAMMING

Channel 3 has four mode options available; 2-position, 3-position, 4-position and proportional (default).

To program channel 3 as a 2-position channel:

1. Press and hold the CH3 top button, then power ON the transmitter. The left LED will glow solid and the right LED will quickly ﬂ ash once and then ﬂ ash 5 times. Continue to hold the top button until the right LED ﬂ ashes 5times.

2. Release the top button.

3. Use the CH3 top and bottom buttons to adjust the accessory/servo to the desired ﬁ rst position.

4. When the ﬁ rst position is reached, turn the steering wheel clockwise (right) to save position 1. The LED will ﬂ ash once to conﬁ rm position 1 has been saved.

5. Use the CH3 buttons to adjust the accessory/servo to the desired second position.

6. When the second position is reached, turn the steering wheel clockwise to conﬁ rm position 2. The LED will ﬂ ash twice to conﬁ rm position 2 has been saved.

7. Turn off the transmitter to save the CH3 settings.

To program channel 3 as a 3-position channel:

2. Release the top button.

3. Use the CH3 top and bottom buttons to adjust the accessory/servo to the desired ﬁ rst position.

4. When the ﬁ rst position is reached, turn the steering wheel clockwise (right) to save position 1. The LED will ﬂ ash once to conﬁ rm position 1 has been saved.

5. Repeat steps 3 and 4 to deﬁ ne the second and third positions. The LED will ﬂ ash twice for the second position and three times for the third position when saved.

6. Turn off transmitter to save the CH3 settings.

To program channel 3 as a 4-position channel:

2. Release the top button.

3. Use the CH3 top and bottom buttons to adjust the accessory/servo to the desired ﬁ rst position.

4. When the ﬁ rst position is reached, turn the steering wheel clockwise (right) to save position 1. The LED will ﬂ ash once to conﬁ rm position 1 has been saved.

5. Repeat steps 3 and 4 to deﬁ ne positions 2-4. The LED will ﬂ ash a corresponding number of times for each saved position.

6. Turn off transmitter to save the CH3 settings.

To program channel 3 as a proportional channel (default):

1. Press and hold the CH3 top button, then power ON the transmitter. The left LED will glow solid and the right LED will immediately ﬂ ash once. Release the top button as soon as the right LED goes out. IMPORTANT: If the top button is held too long, the transmitter will enter 2, 3, 4-position CH3 programming mode, indicated by 5 ﬂ ashes. Power the transmitter off and begin again. When the top button is released, the right LED will glow solid, indicating channel 3 is in proportional mode.

2. Turn off transmitter to save the CH3 settings.

TIPS:

• Press and hold the CH3 push buttons to quickly adjust the output position. Press and release to make smaller adjustments.

• The ﬁ rst selected position and the last selected position will always be the maximum travel end points for CH3.

• Moving the steering wheel during adjustment of CH3 will save the current position. Do not move the steering wheel unless the position is ready to be saved.

3SPEKTRUM STX3 USER GUIDE

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