Radiolink T8FB 2.4GHz 8-Channel RC Radio Transmitter and R8EF Receivers Instruction Manual

1. Product Overview

The Radiolink T8FB is an 8-channel 2.4GHz RC radio transmitter designed for various remote-controlled models including airplanes, boats, cars, and robots. It utilizes FHSS communication technology for stable signal transmission and features an intuitive interface for easy operation.

Image 1.1: Radiolink T8FB Transmitter and R8EF Receivers. This image displays the T8FB transmitter alongside two R8EF receivers, highlighting the complete set included with the product.

2. What's in the Box

Your Radiolink T8FB package includes the following components:

• 1x Radiolink T8FB 8-Channel Transmitter
• 2x Radiolink R8EF Receivers
• 1x User Manual
• Additional accessories (e.g., spring for stick adjustment)

Image 2.1: Radiolink T8FB Box Contents. This image shows the T8FB transmitter, R8EF receiver, and small accessories neatly packaged within the product box.

3. Product Features

• Excellent Anti-interference: Pseudo random algorithm FHSS communication technology ensures stable signal with a control range up to 1.3 miles (2KM), high precision potentiometer, and low latency control.
• 8 Channels: Features 8 channels with Dual Rate, End Point Adjust, Training and Simulator Function, Failsafe Setting, and Low Power Alarm.
• APP Setups: Easy parameter setting via wireless connection to iOS/Android app and PC programs. Functions include Fail-safe value, End Point Adjustment, Dual Rate, and 4 Programmable Mixing controls (2 on iOS app, with future updates). Firmware is updatable for future features.
• Anti-Reverse Protection: Designed to prevent damage even if battery polarity is inserted incorrectly. Universal JST connector supports various battery types.
• Multiple Models Storage: No limit on model storage. Applicable to Multirotor, Airplane, Glider, RC Tank, STEM Robot, RC Car & Boat.

Image 3.1: Radiolink T8FB Features Overview. This image highlights key features of the T8FB transmitter, including its 8 channels, low latency, 1.2-mile control distance, SBUS/PPM/PWM support, wireless training function, and Android/iOS app setup capability.

4. Setup Instructions

4.1 Battery Installation

The T8FB transmitter can be powered by 4 AA batteries or a 2S-4S LiPo battery (not included). Ensure correct polarity when inserting batteries.

Image 4.1: Radiolink T8FB Battery Compartment. This image shows the battery compartment of the T8FB, indicating where 4 AA batteries are inserted. The JST connector for LiPo batteries is also visible.

4.2 Receiver Connection (R8EF)

Connect the R8EF receiver to your model's flight controller or servos. The R8EF supports S.BUS, PPM, and PWM signal outputs. Ensure correct channel mapping:

• CH1: Aileron
• CH2: Elevator
• CH3: Throttle
• CH4: Rudder

Image 4.2: Radiolink R8EF Receiver. This image displays the R8EF receiver with its various channel ports labeled for connection to servos or flight controllers.

4.3 Binding the Transmitter and Receiver

To establish communication between the T8FB transmitter and R8EF receiver, follow the binding procedure outlined in the full user manual. Ensure both devices are powered on and in binding mode.

4.4 App and PC Software Setup

The T8FB can be configured using a mobile app (iOS/Android) or PC software via Bluetooth. This allows for detailed parameter adjustments.

Image 4.3: Radiolink T8FB App Connection. This image shows the T8FB transmitter wirelessly connected to a smartphone running the parameter setting application.

Image 4.4: Mobile App and PC Software Interface. This image illustrates the user interface for parameter setup on both Android/iOS mobile apps and PC/laptop programs.

5. Operating Instructions

5.1 Basic Controls

The T8FB features dual sticks for precise control. The left stick typically controls throttle and rudder, while the right stick controls ailerons and elevator. Various switches and potentiometers allow for additional functions and mixing.

5.2 Flight Modes and Mixing

The transmitter supports multiple flight modes and programmable mixing functions. These can be configured via the app or PC software to suit different model types and pilot preferences.

Image 5.1: Programmable Mixing Control. This image shows the interface for setting up 4 programmable mixing controls within the T8FB's software.

5.3 Telemetry and Alarms

The T8FB provides telemetry data such as transmitter voltage, receiver voltage, and external voltage. It also features a low power alarm to alert the user when battery levels are critical.

Image 5.2: TX Voltage Alarm & Battery Supply of T8FB. This image displays the telemetry screen showing transmitter voltage (TX), receiver voltage (RX), external voltage (EXT), and RSSI (signal strength).

Video 5.1: TX Voltage Alarm & Battery Supply of T8FB. This video demonstrates how the T8FB's voltage alarm system works and how to monitor battery levels.

6. Binding and Calibration

6.1 Binding Procedure

Refer to the full user manual for detailed steps on binding your T8FB transmitter to the R8EF receivers. This typically involves powering on the receiver while holding a bind button, then powering on the transmitter in bind mode.

6.2 Throttle Cut Function

The throttle cut function is a safety feature that immediately cuts power to the motor. It is important to understand how to set and use this function correctly.

Video 6.1: How to set the Throttle Cut function on T8FB. This video provides a step-by-step guide on configuring the throttle cut safety feature on the T8FB transmitter.

7. App Setup and Simulator Function

7.1 Parameter Setting via App/PC

The T8FB allows for extensive customization of parameters through its dedicated mobile app (iOS/Android) and PC software. This includes adjusting endpoints, dual rates, and mixing functions.

Image 7.1: Signal Working Modes. This image shows the R8EF receiver's LED indicators for PWM (Red) and PPM/S.BUS (Blue/Purple) signal modes.

7.2 Simulator and Training Functions

The T8FB can be used with flight simulators for practice and training. This feature is crucial for new pilots to develop their skills safely.

Image 7.2: Simulator/Trainer Support. This image depicts the T8FB transmitter being used with a flight simulator on a laptop, demonstrating its compatibility for training.

Video 7.1: T8S transmitter with R12F/R16F receiver to play simulator. This video demonstrates how to connect a Radiolink T8S (similar to T8FB) transmitter with an R12F/R16F receiver to a computer for simulator use.

8. Firmware Update

The T8FB's firmware can be updated to support future features and improvements. Updates are typically performed via a USB connection to a PC.

Image 8.1: Firmware Update Port. This image highlights the USB port on the T8FB transmitter, used for firmware updates (not for charging).

9. Maintenance

To ensure the longevity and optimal performance of your T8FB transmitter and R8EF receivers, follow these maintenance guidelines:

• Keep the devices clean and free from dust and moisture.
• Store in a cool, dry place when not in use.
• Avoid exposing the devices to extreme temperatures or direct sunlight.
• Regularly check battery connections and ensure batteries are charged before use.

10. Troubleshooting

If you encounter issues with your T8FB system, consider the following:

• Poor Documentation: If the provided documentation is unclear, refer to online resources or community forums for additional guidance.
• Throttle Channel Reversal: Ensure the throttle channel is correctly configured. Incorrect reversal can lead to unexpected motor behavior.
• Binding Issues: Re-attempt the binding procedure, ensuring both transmitter and receiver are in the correct modes.
• Low Power Alarm: Recharge or replace batteries immediately when the low power alarm is triggered.

11. Specifications

• ASIN: B094Y36P9X
• Customer Reviews: 4.0 out of 5 stars (9 ratings)

12. Safety Information

Always operate your RC equipment responsibly and safely. Follow all local regulations and guidelines for RC model operation. Ensure propellers are removed or disarmed during setup and calibration to prevent injury.

13. Warranty & Support

For any questions or support regarding your Radiolink T8FB, please contact Radiolink Direct. Refer to the product packaging or official Radiolink website for specific warranty details and contact information.