Futaba R3204SB – T-FHSS Air 2.4GHz 4-Channel Receiver with S.BUS2 Telemetry

The Futaba R3204SB is a compact, lightweight 2.4GHz T-FHSS Air receiver designed for RC aircraft. Featuring advanced dual antenna diversity, integrated telemetry and S.BUS2 connectivity, it offers reliable signal reception and flexible connection options for a wide range of aircraft models.

As the successor to the popular R3104SB, the R3204SB adds support for a 1S LiPo power supply, making it an excellent choice for lightweight electric aircraft and installations where space and weight are important.

With four conventional PWM channel outputs and an S.BUS2 connection supporting up to 18 channels (depending on the transmitter), this receiver offers plenty of flexibility for modern RC setups.

Key Features

• T-FHSS Air 2.4GHz: Reliable digital communication with integrated telemetry.

• Dual Antenna Diversity: Two antennas help maintain reliable signal reception from different orientations.

• 4 Conventional Channels: Direct connections for standard servos and other equipment.

• S.BUS2 Connectivity: Supports up to 18 channels, depending on the compatible transmitter.

• Integrated Telemetry: Transmits receiver voltage information and supports compatible Futaba telemetry sensors.

• 1S LiPo Compatible: Suitable for installations powered by a single-cell LiPo battery.

• Compact & Lightweight: Only 4.8 grams, ideal for weight-sensitive aircraft.

• Model ID Function: Helps ensure the correct model memory is selected.

• Wide Voltage Compatibility: Supports receiver power supplies within the specified operating voltage range.

Additional Functions & Possibilities

Telemetry Monitoring

The integrated telemetry system allows receiver voltage to be monitored directly on a compatible Futaba transmitter. You can configure voltage alarms to receive a warning when the receiver supply voltage becomes too low.

Additional compatible Futaba telemetry sensors can be connected through the S.BUS2 port to monitor other flight-related information.

S.BUS2 Expansion

The S.BUS2 connection allows you to use compatible digital servos, telemetry sensors and other S.BUS2 devices. Depending on your transmitter, the system supports up to 18 channels.

Dual Antenna Diversity

The dual antenna system improves reception reliability by using two antenna elements. For optimal performance, position the antennas at approximately 90 degrees to each other and avoid placing them close to carbon fibre or other shielding materials.

Flexible Power Supply

The receiver supports 1S LiPo, 2S LiPo and suitable regulated receiver power supplies within its operating voltage range. This makes it suitable for various electric and conventional RC aircraft installations.

Important: The receiver does not regulate the output voltage. Connected servos and accessories must therefore be compatible with the actual receiver supply voltage. When using a 2S LiPo, ensure all connected equipment supports that voltage.

Technical Specifications

Compatibility

The Futaba R3204SB is designed for Futaba transmitters supporting the T-FHSS Air communication protocol.

Please check your transmitter's specifications before purchasing. It is not compatible with Futaba S-FHSS, FASST or FASSTest systems.

Important Installation Notes

• Position both antennas approximately 90 degrees apart.

• Keep antennas away from carbon fibre structures and other sources of signal interference.

• Use only compatible S.BUS2 devices on the S.BUS2 connection.

• Ensure connected servos are rated for the receiver's actual supply voltage.

• When using a 1S LiPo at 3.8V or below, disable the Battery F/S function and use the receiver voltage telemetry alarm instead.

The Futaba R3204SB is an excellent choice for RC pilots looking for a lightweight, reliable and versatile receiver with modern telemetry and S.BUS2 capabilities.