Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your FlySky FS-i6s 2.4G RC Transmitter and FS-iA6B Receiver. This system is designed for controlling various remote-controlled models, including helicopters, planes, quadcopters, gliders, and drones. Please read this manual thoroughly before using the product to ensure safe and optimal performance.
Product Overview
The FlySky FS-i6s is a 2.4GHz digital proportional radio control system featuring a capacitive touch screen and dual built-in antennas. It is bundled with the FS-iA6B 6-channel receiver.

Transmitter Components

- Left Gimbal: Controls pitch and roll (or throttle and yaw depending on mode).
- Right Gimbal: Controls pitch and roll (or throttle and yaw depending on mode).
- SwA, SwB, SwC, SwD: Assignable switches for various functions.
- VrA, VrB: Potentiometers (dials) for proportional control.
- Power Buttons: Located on both sides of the capacitive touch screen.
- Capacitive Touch Screen: For menu navigation and settings adjustment.
- Neck Strap Eye: Attachment point for a neck strap.
- Phone Holder Mounting Point: For attaching a smartphone holder (sold separately).
Receiver (FS-iA6B)
The FS-iA6B is a 6-channel receiver designed to work seamlessly with the FS-i6s transmitter. It features dual antennas for improved signal reception and reliability.

Specifications
| Feature | Specification |
|---|---|
| Product Model | FS-i6s |
| Channels | 10 (Transmitter), 6 (FS-iA6B Receiver) |
| Compatible Models | RC Helicopter, Plane, Quadcopter, Glider, Drone |
| Wireless Frequency | 2.4GHz |
| Transmission Power | <20 dBm |
| Wireless Protocol | AFHDS 2A |
| Range | 500 ~ 1500m (in the air) |
| Channel Resolution | 4096 |
| Battery | 4 x 1.5V AA batteries (not included) |
| Charging Port | None |
| Low Voltage Alarm | < 4.2V |
| Antenna Type | Built-in dual antenna |
| Display | Capacitive touch screen |
| Language | Chinese and English |
| USB Simulator Compatibility | USB emulator |
| Data Port | PS / 2 (PPM) |
| Temperature Range | -10 ℃ — + 60 ℃ |
| Humidity Range | 20% -95% |
| Online Update | Yes |
| Color | White |
| Dimensions | 179mm x 81mm x 161mm |
| Weight | 410g |
| Certifications | CE, RCM, FCC ID: N4ZFLYSKYI6 |
| Material | Composite Material |
| Recommended Age | 14+ years |
Setup
1. Battery Installation (Transmitter)
- Locate the battery compartment on the rear of the FS-i6s transmitter.
- Open the battery compartment cover.
- Insert four (4) 1.5V AA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.

2. Throttle Mode Selection
The FS-i6s transmitter supports two throttle modes:
- Mode 1: Right-hand throttle. The right gimbal controls throttle.
- Mode 2: Left-hand throttle. The left gimbal controls throttle.
Ensure your transmitter is configured to the preferred throttle mode before operation. This setting is typically adjusted in the system menu.
3. Receiver Binding (FS-iA6B)
To establish communication between the transmitter and receiver, they must be bound. The general binding procedure is as follows:
- Ensure the transmitter is powered off.
- Connect the bind plug to the B/VCC port on the FS-iA6B receiver.
- Power on the receiver (e.g., connect to a flight controller or external power source). The receiver's LED should flash rapidly.
- While holding down the BIND button on the transmitter (if available, otherwise refer to the on-screen menu for binding), power on the transmitter.
- The receiver's LED should stop flashing and remain solid, indicating a successful bind.
- Power off both the transmitter and receiver.
- Remove the bind plug from the receiver.
- Power on the transmitter first, then the receiver. The receiver's LED should be solid, confirming the connection.
Note: Specific binding steps may vary slightly. Always refer to the on-screen instructions on the transmitter's capacitive touch screen for detailed guidance.
Operating Instructions
1. Powering On/Off
- To power on: Press and hold either power button until the screen illuminates.
- To power off: Press and hold either power button until the system shuts down.

2. Using the Capacitive Touch Screen
The FS-i6s features a capacitive touch screen for intuitive menu navigation. Tap icons and swipe to access various settings, model memories, and telemetry data.
3. Gimbal and Control Usage
- Gimbals: Control the primary flight surfaces (throttle, aileron, elevator, rudder) of your model.
- Switches (SwA, SwB, SwC, SwD): These are typically used for activating flight modes, gear retraction, or other auxiliary functions. Their specific assignment can be configured in the transmitter's menu.
- Potentiometers (VrA, VrB): These dials provide proportional control for functions like flaps, camera tilt, or other adjustable parameters.

4. Low Voltage Alarm
The transmitter will alert you with an alarm when the battery voltage drops below 4.2V. This indicates that the batteries need to be replaced to prevent loss of control during flight.
5. USB Simulator Use
Connect the transmitter to a computer using a PS/2 (PPM) to USB adapter (not included) to use it with flight simulators. This allows for practice without risking your physical model.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the transmitter and receiver. Avoid using solvents or abrasive cleaners.
- Storage: Store the transmitter and receiver in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries from the transmitter if storing for extended periods.
- Firmware Updates: The FS-i6s supports online updates. Periodically check the official FlySky website for new firmware versions to ensure optimal performance and access to new features. Follow the instructions provided with the firmware update carefully.
- Battery Care: Always use fresh, high-quality AA batteries. Do not mix old and new batteries, or different types of batteries.
Troubleshooting
- Transmitter does not power on:
- Check if batteries are correctly installed and have sufficient charge.
- Ensure the power buttons are pressed and held long enough.
- Receiver does not bind:
- Verify the bind plug is correctly inserted into the B/VCC port on the receiver.
- Ensure the transmitter is in binding mode (refer to on-screen menu).
- Check for interference from other 2.4GHz devices.
- Loss of control/signal during operation:
- Check transmitter battery voltage (low voltage alarm).
- Ensure the model is within the specified range (500-1500m in air).
- Inspect receiver antenna placement; ensure they are not obstructed or damaged.
- Avoid operating in areas with high electromagnetic interference.
- Screen unresponsive:
- Ensure the screen is clean and dry.
- Restart the transmitter.
User Tips
- Range Testing: Always perform a range test before flying a new model or in a new location to ensure reliable communication between the transmitter and receiver.
- Gimbal Calibration: If you notice inconsistent control responses, consider calibrating the gimbals through the transmitter's system menu.
- Battery Management: Carry spare AA batteries for your transmitter, especially during extended flying sessions.
- Model Memory: Utilize the transmitter's model memory feature to save settings for different RC models, making it easy to switch between them.
Warranty and Support
The FlySky FS-i6s transmitter and FS-iA6B receiver are certified with CE, RCM, and FCC ID: N4ZFLYSKYI6, indicating compliance with relevant safety and performance standards.
For technical support, warranty claims, or further assistance, please contact your retailer or the official FlySky support channels. Keep your purchase receipt as proof of purchase.