Futaba R2106GF 6-Channel S-FHSS Micro Receiver Instruction Manual

1. Introduction

The Futaba R2106GF is a super small and lightweight 2.4GHz 6-Channel Micro Receiver designed for remote control applications. It offers a High Speed mode for use with digital servos and includes a fail-safe function on all channels. This receiver is compatible with Futaba FHSS and S-FHSS transmitters and supports a wide voltage range of 4.8V to 7.4V. It is not compatible with FASST systems.

Key Features:

• 6-channel micro receiver.
• 2.4GHz FHSS/S-FHSS compatible.
• High Speed mode for digital servos.
• Fail-safe on all channels.
• High voltage capability (4.8V - 7.4V).
• Compact and lightweight design.

Image 1.1: Top view of the Futaba R2106GF 6-Channel S-FHSS Micro Receiver, showing channel labels 1-6 and the Futaba logo.

2. Safety Information

Always observe the following safety precautions to prevent injury to yourself or others, and to avoid damage to your equipment.

• Ensure the receiver is securely mounted in your model to prevent vibration damage.
• Verify correct polarity when connecting the battery to avoid damage to the receiver.
• Do not operate your model in areas with high radio interference or near power lines.
• Always perform a range check before each flight or operation session.
• Keep the antenna free from obstructions and away from conductive materials.
• This product is recommended for users aged 15 years and up.

3. Package Contents

The Futaba R2106GF package typically includes:

• Futaba R2106GF 6-Channel S-FHSS Micro Receiver
• Instruction sheet (if included separately)

4. Specifications

Image 1.2: Side view of the Futaba R2106GF receiver, showing the six channel ports and the antenna connection.

5. Setup

5.1. Receiver Installation

1. Mount the receiver in your model using double-sided foam tape or a similar vibration-dampening material. Ensure it is protected from fuel, water, and excessive vibration.
2. Position the antenna to ensure optimal signal reception. Avoid bending or cutting the antenna wire.
3. Ensure the antenna is not in contact with carbon fiber or other conductive materials, which can shield the signal.

5.2. Binding (Linking) the Receiver to Your Transmitter

The binding process establishes a unique link between your R2106GF receiver and your Futaba FHSS/S-FHSS transmitter. This must be done before first use.

1. Turn on your Futaba FHSS/S-FHSS transmitter and place it in "Link" or "Binding" mode according to your transmitter's manual.
2. Connect a battery (4.8V-7.4V) to the R2106GF receiver. The LED on the receiver will begin to flash.
3. Press and hold the "SW" (Switch) button on the receiver for approximately 2 seconds. The LED will change its flashing pattern.
4. Once the binding process is complete, the LED on the receiver will turn solid green, indicating a successful link.
5. Turn off both the receiver and the transmitter. Then, turn them back on (transmitter first, then receiver) to confirm the link is maintained.

Note: If the LED does not turn solid green, repeat the binding process. Ensure your transmitter is set to FHSS or S-FHSS mode, not FASST.

5.3. Servo Connections

Connect your servos and other components (e.g., ESC, battery) to the corresponding channels on the receiver. The R2106GF has 6 channels, typically labeled 1 through 6 or B/6.

• Channel 1: Aileron (or Steering for surface models)
• Channel 2: Elevator (or Throttle for surface models)
• Channel 3: Throttle (or Auxiliary for surface models)
• Channel 4: Rudder
• Channel 5: Gear / Auxiliary
• Channel 6 (B/6): Auxiliary / Battery (often used for battery connection or an additional servo)

Always refer to your model's specific instructions for correct servo assignments.

6. Operation

6.1. Powering On and Off

1. Always turn on your transmitter first.
2. Then, connect the battery to the receiver or turn on the receiver's power switch.
3. To power off, disconnect the receiver battery or turn off the receiver's power switch first.
4. Finally, turn off your transmitter.

Following this sequence prevents unintended model operation.

6.2. High Speed Mode

The R2106GF supports a High Speed mode, which is beneficial for digital servos to achieve faster response times. To activate High Speed mode, your transmitter must also support and be set to High Speed (HS) mode. Consult your transmitter's manual for instructions on enabling this feature.

Important: High Speed mode should only be used with digital servos. Using analog servos in High Speed mode can cause damage to the servos.

6.3. Fail-Safe Function

The R2106GF features a fail-safe function on all channels. In the event of signal loss or low battery voltage from the receiver, the fail-safe system will move the servos to a pre-programmed position (e.g., throttle to idle, control surfaces to neutral) to minimize damage or loss of the model. Refer to your transmitter's manual for setting up fail-safe positions.

7. Maintenance

• Keep the receiver clean and free from dust, dirt, and moisture.
• Avoid exposing the receiver to extreme temperatures or direct sunlight for prolonged periods.
• Regularly inspect all wiring and connections for signs of wear or damage.
• Ensure the antenna is not kinked or damaged.
• Store the receiver in a dry, cool place when not in use.

8. Troubleshooting

9. Warranty and Support

9.1. Warranty Information

The Futaba R2106GF Micro Receiver comes with a one-year warranty from the date of purchase. This warranty covers manufacturing defects and workmanship under normal use. It does not cover damage caused by misuse, modification, accident, or improper installation.

Please retain your proof of purchase for warranty claims.

9.2. Customer Support

For technical assistance, troubleshooting beyond this manual, or warranty service, please contact Futaba customer support or your authorized Futaba dealer. Refer to the official Futaba website for the most current contact information.

Online Resources: For additional information and compatibility lists, you may visit the official Futaba website: www.futabarc.com