FLYSKY ST8 12-Channel 2.4GHz Remote Control Transmitter Instruction Manual

1. Introduction

The FLYSKY ST8 is a versatile 12-channel 2.4GHz remote control transmitter designed for a wide range of remote-controlled models, including helicopters, gliders, delta-wing aircraft, multi-rotor aircraft, RC cars, robots, and boats. This manual provides essential information for the safe and effective operation, setup, and maintenance of your FS-ST8 transmitter and its adaptive receiver.

2. Safety Information

• Always operate your RC model in a safe environment, away from people, animals, and obstacles.
• Ensure all connections are secure before operation. Loose connections can lead to loss of control.
• Battery Safety: The transmitter requires 4xAA batteries or a 2S LiPo battery (JST connector). Do not mix old and new batteries, or different types of batteries. Observe the low voltage warning thresholds: <4.2V for AA batteries and <7.2V for LiPo batteries. Replace or recharge batteries promptly when warnings appear to prevent loss of control.
• Keep the transmitter and receiver away from moisture and extreme temperatures.
• Do not attempt to modify the transmitter or receiver. Unauthorized modifications can void your warranty and compromise safety.
• Always turn on the transmitter first, then the receiver. When powering off, turn off the receiver first, then the transmitter.

3. Package Contents

Please check the package contents carefully upon unboxing:

• 1x FLYSKY ST8 Remote Control Transmitter
• 1x FLYSKY FS-SR12 12-Channel Receiver

4. Product Overview

The FS-ST8 transmitter features a robust design with intuitive controls and a clear LCD display. The accompanying FS-SR12 receiver is compact and supports various data outputs.

4.1 Transmitter Components

1. Display
2. EXIT Button
3. MENU Button
4. T1/T2 Trim
5. Neck Strap Hook
6. Left Stick
7. Power Switch
8. SWA Two-position Switch
9. SWB Two-position Switch
10. VRA Knob
11. Carrying Handle
12. VRB Knob
13. SWC Three-position Switch
14. SWD Two-position Switch
15. LED Indicator
16. Right Stick
17. T3/T4 Trim Button
18. Scroll Wheel
19. A Hole for Fixing the Cell Phone Holder
20. Trainer Jack
21. A Preserved Hole for Fixing Antenna
22. Type-C Port
23. RF Interface
24. A Preserved Hole for XT30 Cable
25. Battery Compartment
26. JST Jack

4.2 Receiver Overview (FS-SR12)

The FS-SR12 receiver is a compact unit with 12 channels, operating on the 2.4GHz ANT protocol. It features dual antennas for improved signal reception and a BIND button for pairing with the transmitter. It supports PWM/PPM/i-BUS/S.BUS data output.

5. Specifications

5.1 Receiver FS-SR12 Specifications

• Numbers of Channel: 12
• Antenna Type: Two Antennas
• 2.4GHz Protocol: ANT
• Maximum Power: <20dBm (e.i.r.p.) (EU)
• Data Output: PWM/PPM/i-BUS/S.BUS
• Distance: >1000m (Air Distance without Interference)
• RF: 2.4GHz ISM
• Input Power: 3.5~9V/DC
• Resolution: 4096
• Dimensions: 44.8mm x 26.6mm x 11.3mm

6. Setup

6.1 Battery Installation

The FS-ST8 transmitter can be powered by 4xAA batteries or a 2S LiPo battery. The battery compartment is located at the bottom rear of the transmitter (refer to Figure 2, item 25).

• For AA Batteries: Open the battery compartment cover. Insert 4 AA batteries, ensuring correct polarity (+/-). Close the cover securely.
• For 2S LiPo Battery: Connect a 2S LiPo battery with a JST connector to the JST Jack inside the battery compartment (refer to Figure 2, item 26). Ensure the battery fits snugly and the compartment cover can be closed without pinching wires.

6.2 Binding the Receiver

Binding is the process of linking the transmitter to the receiver, allowing them to communicate wirelessly. The FS-SR12 receiver has a BIND button.

1. Ensure the transmitter is powered off.
2. Connect power to the FS-SR12 receiver. The LED on the receiver should start flashing, indicating it's ready for binding.
3. Press and hold the BIND button on the receiver.
4. While holding the BIND button, power on the transmitter.
5. The LED on the receiver should turn solid, indicating successful binding. Release the BIND button.
6. Turn off both the transmitter and receiver, then power them on again (transmitter first, then receiver) to confirm the binding is saved and functional.

6.3 Initial Configuration

After binding, you may need to configure the model type and channel assignments through the transmitter's menu. Refer to the 'Operating Instructions' section for menu navigation.

7. Operating Instructions

7.1 Powering On/Off

• To power on the transmitter, press the Power Switch (Figure 2, item 7).
• To power off, press and hold the Power Switch until the display turns off.

7.2 Basic Controls

• Sticks (Left & Right): Control primary functions like throttle, rudder, aileron, and elevator, depending on your model type and mode settings.
• Trims (T1/T2, T3/T4): Used for fine-tuning control surfaces to achieve stable flight or movement.
• Switches (SWA, SWB, SWC, SWD): Assignable switches for various functions such as flight modes, gear, flaps, etc.
• Knobs (VRA, VRB): Assignable rotary knobs for proportional control of auxiliary functions.

7.3 Menu Navigation

The FS-ST8 features a 128*64 LCD display for menu navigation. Use the MENU, EXIT buttons, and the Scroll Wheel for interaction.

• Main Display: Shows signal strength (TX/RX), TX voltage, RX voltage (if bound and receiver is 6V, then RX6.0V will display), timer, model name, and icons for enabled functions (Lock, Flight mode, Throttle hold, GPS).
• Accessing Menus:
  • Press the MENU button (Figure 2, item 3) to enter the main menu.
  • Use the Scroll Wheel (Figure 2, item 18) to navigate through menu options.
  • Press the Scroll Wheel to select an option.
  • Press the EXIT button (Figure 2, item 2) to go back to the previous screen or exit the menu.
• Quick Access:
  • Select the SENSOR area on the display and press the Scroll Wheel to quickly access the SENSOR menu.
  • Select the SELECT TYPE menu area and press the Scroll Wheel to quickly access the SELECT TYPE menu.
  • Select the TIMERS menu area and press the Scroll Wheel to quickly access the TIMERS menu.
  • Select the MODEL menu area and press the Scroll Wheel to quickly access the MODEL menu.

8. Maintenance

• Cleaning: Use a soft, dry cloth to clean the transmitter and receiver. Do not use solvents or abrasive cleaners.
• Storage: Store the unit in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries if storing for extended periods.
• Battery Care: Always ensure batteries are charged appropriately and not over-discharged. Dispose of old batteries responsibly.
• Firmware Updates: The FS-ST8 supports online updates. Regularly check the FLYSKY official website for the latest firmware to ensure optimal performance and access to new features. Use the Type-C Port (Figure 2, item 22) for connecting to a computer for updates.

9. Troubleshooting & FAQ

Q: My transmitter and receiver are not communicating.

A: Ensure both units are powered on (transmitter first). Re-check the binding process as described in Section 6.2. Make sure the receiver is compatible with the ANT protocol. Check battery levels on both devices.

Q: How do I ensure all 12 channels are active?

A: The FS-ST8 is a 12-channel transmitter. Once bound to a compatible 12-channel receiver like the FS-SR12, all channels should be available. You may need to configure channel assignments within the transmitter's menu system to match your model's requirements. No additional update is typically required for basic 12-channel functionality after binding.

Q: Is this an upgraded version?

A: The FS-ST8 is a current model from FLYSKY. For specific version details or to check if you have the latest firmware, refer to the 'Online update' feature mentioned in the specifications and check the official FLYSKY website.

10. User Tips

• Customizing Channels: Take advantage of the 12 channels by assigning auxiliary functions (e.g., lights, winches, camera gimbals) to the available switches and knobs (SWA, SWB, SWC, SWD, VRA, VRB) through the transmitter's menu.
• Model Memory: The ST8 likely has model memory. Utilize this feature to save settings for different RC models, making it easy to switch between them without reconfiguring.
• Range Testing: Before flying or operating your model at a distance, always perform a range test in a safe area to ensure reliable communication between the transmitter and receiver.

11. Warranty and Support

For warranty information, technical support, or service inquiries, please contact the retailer where you purchased the product or visit the official FLYSKY website. Keep your proof of purchase for warranty claims.