1. Product Overview
The Futaba R3008SB is a high-performance 2.4GHz T-FHSS telemetry receiver designed for remote control applications. It supports bi-directional communication with compatible Futaba T-FHSS Air-2.4GHz transmitters via its S.BUS2 port, enabling real-time telemetry data transmission. The receiver features both standard PWM output ports and S.BUS output ports for versatile connectivity with various servos and accessories.
Key features include:
- Bi-directional communication with T-FHSS Air-2.4GHz Futaba transmitters.
- S.BUS2 port for telemetry and S.BUS servo connectivity.
- Standard PWM output ports for traditional servo connections.
- High-voltage compatibility (4.8-7.4V).
- Dual diversity antennas for enhanced signal reception.
2. Product Components

Figure 2.1: Futaba R3008SB Receiver. This image displays the Futaba R3008SB receiver unit, highlighting its compact design and dual diversity antennas. The various ports for channel connections and the S.BUS2 port are visible.

Figure 2.2: Futaba R3008SB Receiver in Packaging. The receiver is shown within its clear retail packaging, secured for transport. The packaging typically includes the receiver unit and basic instructions.
3. Setup
3.1. Power Requirements
The R3008SB receiver operates on a power requirement of 4.8-7.4V. Ensure your power source (e.g., battery pack, BEC) provides voltage within this range to prevent damage and ensure proper operation.
3.2. Binding the Receiver
To establish communication between the R3008SB receiver and your Futaba T-FHSS Air-2.4GHz transmitter, a binding procedure is required. Refer to your specific Futaba transmitter's instruction manual for detailed binding steps, as the process may vary slightly between transmitter models. Generally, this involves placing both the transmitter and receiver into bind mode.
3.3. Connecting Servos and Accessories
The R3008SB receiver offers two types of output ports:
- Standard PWM Output Ports (Channels 1-8): Connect your conventional analog or digital servos directly to these ports. Each port corresponds to a specific channel (e.g., Channel 1 for Aileron, Channel 2 for Elevator, etc.).
- S.BUS2 Port: This port allows for connection of S.BUS2 compatible servos and sensors, enabling a single wire connection for multiple devices. It also facilitates bi-directional communication for telemetry data.
- Extra Voltage Port: An external voltage port is available for monitoring voltage from 0 to 70V DC. Connect appropriate sensors or power sources to this port for telemetry feedback.
Ensure all connections are secure and correctly oriented (signal, positive, negative) to prevent damage to the receiver or connected components.
4. Operating Instructions
4.1. Telemetry Functions
The R3008SB receiver supports telemetry, allowing real-time data from your model to be displayed on your compatible Futaba T-FHSS transmitter. This includes data from connected S.BUS2 sensors (e.g., battery voltage, temperature, RPM). Consult your transmitter's manual for instructions on setting up and displaying telemetry data.
4.2. Battery Failsafe Voltage Setup
The Battery Failsafe (F/S) voltage can be set up directly through your transmitter. This feature allows you to define a minimum voltage threshold, below which the receiver will activate failsafe settings (e.g., throttle to idle) to protect your model. Refer to your transmitter's manual for detailed instructions on configuring this setting.
5. Maintenance
To ensure the longevity and reliable performance of your Futaba R3008SB receiver, follow these maintenance guidelines:
- Keep Dry: Protect the receiver from moisture and humidity. Water ingress can cause irreparable damage.
- Avoid Extreme Temperatures: Do not expose the receiver to excessively high or low temperatures.
- Cleanliness: Keep the receiver free from dust, dirt, and debris. Use a soft, dry brush or cloth for cleaning.
- Secure Mounting: Ensure the receiver is securely mounted within your model to prevent vibrations from affecting its performance or causing physical damage.
- Antenna Placement: Properly route and secure the dual diversity antennas to maximize signal reception and minimize interference. Avoid bending them sharply or placing them near conductive materials.
6. Troubleshooting
If you encounter issues with your R3008SB receiver, consider the following troubleshooting steps:
- No Power/No LED: Check power connections and ensure the voltage is within the 4.8-7.4V range. Verify battery charge.
- No Control/No Binding: Re-attempt the binding procedure as per your transmitter's manual. Ensure the transmitter is in T-FHSS Air mode. Check for signal interference.
- Intermittent Control/Telemetry Loss: Inspect antenna placement and ensure they are not obstructed or damaged. Check for loose connections. Verify the range of your system.
- Incorrect Servo Movement: Verify servo connections to the correct PWM ports. Check servo direction and travel settings on your transmitter.
- Telemetry Data Issues: Ensure S.BUS2 sensors are correctly connected and configured. Check transmitter settings for telemetry display.
If problems persist, consult the comprehensive manual for your Futaba T-FHSS transmitter or contact Futaba customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model | R3008SB |
| Communication System | T-FHSS Air-2.4GHz |
| Channels | 8 (PWM) / 32 (S.Bus2) |
| Power Requirement | 4.8-7.4V DC |
| Size | 24.9 x 47.3 x 14.3 mm (0.98 x 1.86 x 0.56 inches) |
| Weight | 10.1 g (0.36 oz) |
| Antenna Type | Dual Diversity |
| Extra Voltage Port | 0-70V DC |
| Impedance | 50 Ohms |
8. Warranty and Support
8.1. Limited Warranty
The Futaba R3008SB receiver comes with a one-year limited warranty through Hobby Services, effective from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims.
8.2. Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Hobby Services or your authorized Futaba dealer. Detailed contact information can typically be found on the Futaba official website or within the product packaging.





