FUTABA RECEIVER R404SBS

futaba's 10-channel F-4G 2.4GHz transmission system receiver with super-fast response and full telemetry for RC cars and boats. It is designed for general use in models of all categories. The S.BUS2 port for bidirectional communication allows connection of S.BUS2 servos for channels 5-10, Futaba telemetry sensors, gyroscopes or other compatible devices. The receiver's operating states are indicated by an LED.

F-4G transmission system

Futaba F-4G 2.4 GHz is a new transmission system with super-fast response, allowing telemetry transmission of up to 10 channels. On channels 1-4 it is possible (depending on the settings in the transmitter, each channel can operate in a different mode) to transmit a narrowband signal for Futaba SR servos with a repetition rate of 833 Hz (1 ms alternation), for classic digital servos with a repetition rate of 333 Hz (3 ms alternation) or for analog servos with a repetition rate of 66 Hz (15 ms cycle). Channels 5-10 are transmitted as a serial signal for S.BUS2 servos with a repetition rate of 66 Hz.

Power supply

3.7 - 7.4 V (nominal voltage) - i.e., e.g., 4-6 NiMH cells, 1-2S LiPo/Li-ion, 2S LiFe, BEC power stabilizers within a given voltage range.

Antenna

The receiver is equipped with Diversity antennas - one long external antenna and one built into the receiver box.

Receiver outputs, channel modes

The receiver is equipped with sockets for standard Futaba connectors (with a protrusion), into which, of course, UNI connectors (=JR/Graupner, Hitec) without a side protrusion can also be inserted.

Channel outputs (PWM): The R404SBS offers 4 classic PWM channels.

S.BUS2: The S.BUS2 socket allows the connection of S.BUS2 servos for channels 5-10, Futaba telemetry sensors whose data can be displayed on the transmitter, gyros/stabilization units or other devices.

Telemetry

The R404SBS transmits receiver supply voltage data to the transmitter without connecting any sensors.

The R404SBS allows the use of Futaba telemetry sensors and other sensors compatible with the S.BUS2 bus system with two-way communication (the suitability of the sensors depends on the transmitter's capabilities).

Firmware upgradeability

The receiver's firmware can be updated wirelessly via the transmitter.

What is S.BUS2/S.BUS

S.BUS - Futaba's serial bus with unidirectional communication that allows control of servos, controllers, switches, gyros and other compatible RC devices connected to a single output port of the S.BUS receiver.
S.BUS2 - Futaba's serial bus for bidirectional communication allowing (like S.BUS) control of servos, controllers, switches, gyroscopes and other compatible RC devices connected to a single output/input port of the S.BUS2 receiver. In addition, it allows you to connect telemetry sensors and send data from them through the receiver for display on the transmitter; from some servos, the S.BUS2 can send information about operating current, temperature or servo output lever angle to the transmitter.

Unlike classic RC kits, the S.BUS(2) system uses serial data communication to send control signals from the receiver to the servo, gyro or other device. This data includes commands such as "move channel 3 servo by 15 degrees, move channel 5 servo by 30 degrees" for many devices. S.BUS(2) devices only execute commands belonging to their own set channel. For this reason, it is possible to connect several servos to the same signal cable, setting and controlling them individually as needed. The servo identification code (ID) is used for this purpose. You can find the ID on a sticker on the servo box.

The S.BUS2 servo can be connected to the receiver's S.BUS2 and S.BUS ports. Its function is determined by setting the channel in the servo's memory (this is done using the programming interface of the Futaba transmitter, the SBC-1 programmer or the CIU-3 USB interface with the S-Link PC program - for some servos, the channel can only be set using the transmitter).

An S.BUS or S.BUS2 servo connected to the channel output of a classic receiver (PWM) works like a classic servo. Its movement is indicated by a signal in the channel of the receiver to which it is connected. The settings of programmable servo functions remain in effect.

Specifications:

• Modulation/coding: F-4G 2.4 GHz
• Number of channels: 10
• Power supply (rated voltage): 3.7V / 4.8 V / 6 V / 6.6V / 7.2 V / 7.4 V
• Length [mm]: 25,5
• Width [mm]: 20,7
• Height [mm]: 10,6
• Weight [g]: 5,7
• Serial output: S-BUS2

*Follow the instruction manual included with the product.